picking between two knife sharpening stones?

I have found two different tri stones. One is a classic flat arkansas stone set, the other is a round space aged ceramic set. I have used the space age one in the past but it is quite a bit more expensive than the other flat stone set
have a look:

Get the largest Arkansas hard stone you can find. I used to have a 12 inch Arkansas hard and the results were terrific. I don't like the idea of the space aged rods. You need a flat surface to get a good edge.

Knife Sharpening : Knife Sharpening: Ceramic Sharpening Rods

Wusthof Sharpening Santoku Knife Sharpener $19.95 Santoku knives have a narrower blade angle than traditional cooks knives. The Santoku manual knife sharpener applies a 17 degree edge to the blade. The sharpening process starts with coarse ceramic rods to set the edge and then finer ceramic rods are used to finish the sharpening.

Wusthof Classic Ikon Knife Sharpener $49.95 Great knives require a great sharpener to maintain the exceptionally sharp edge. The Ikon sharpener uses a combination of sharpening methods to keep your knives in top condition. The sharpener features crossed diamond rods and crossed ceramic stones to bring your knife back to razor sharpness. The house is sturdy cast aluminum and has non-slip feet for steadiness when sharpening.

Fiskars 40127097 Knife Sharpener $9.82 Fiskars 40127097 Knife Sharpener Fiskars 40127097 Knife Sharpener Features: • Knife sharpener • Rotating ceramic wheel removes old, dull edge of knife • Patented system

2909-7 Ikon Knife and Scissor Sharpener $44.5 The Wusthof Ikon knife and scissor sharper features cross diamond rods and ceramic stones that combined in stages to bring your knife to razor sharpness. The sturdy cast aluminum housing is stable and durable. The Ceramic honing stage can also be used to

Taylors Eye Witness Roll Sharp Knife Sharpener. $9.99 Black body, transparent cover and ceramic sharpening stone.Used regularly the ceramic rods in this sharpener will keep your knives sharp. Regularly draw the blade through holding it vertically.Non serrated knives only.Manufacturers 10 year guarantee.

Smith's Sharpeners CCKS Two Step Knife Sharpener $3.26 Smith's Sharpeners CCKS Two Step Knife Sharpener Ceramic and carbide grade. Includes ceramic rods, non-slip rubber feet, plastic holder and carbide cutting heads. This features 2 tungsten carbide cutting heads whose pre-set angles ensure the perfect edge every time. 3-4 strokes restores the edge. Smith's Sharpeners CCKS Two Step Knife Sharpener Features: • Material: Carbide & Ceramic • Type: Hand-Held • Size: N/A • Special Features: Non-Skid Base for Stable Sharpening, Crossed Carbide Blades Provide Quick Edge Setting, Crossed Ceramic Rods Provide A Razor Sharp Edge, Pre-Set Sharpening Angles Provide Guaranteed Results

Mini Crock Stick Pocket Sharpener $3.87 Lansky Sharpeners LCKEY Mini Crock Stick Pocket Sharpener Compact, lightweight and versatile knife and fish hook sharpener. It features a 2 stage sharpening System, and two removable alumina ceramic sharpening rods. With key chain is a compact. Lansky Sharpeners LCKEY Mini Crock Stick Pocket Sharpener Features: • Made In: United States

Smith's Sharpeners PP1 Carbide, Ceramic, & Diamond Knife Sharpener $8.97 Smith's Sharpeners PP1 Carbide, Ceramic, & Diamond Knife Sharpener Smith's Sharpeners PP1 Carbide, Ceramic, & Diamond Knife Sharpener Features: • Material: Carbide, Ceramic, & Diamond • Type: Hand-Held • Grit: Coarse/Medium • Size: N/A • Special Features: Tapered Diamond Rod For Sharpening Serrated and Straight Edges, Carbide Blades Quickly Set Your Edge, Ceramic Stones Give You A Razor Sharp Edge, Reversible and Replaceable Carbide Blades and Ceramic Stones, Lanyard Hole

Gerber 09841 Knife Sharpener $6.99 Knife Sharpener 7.40" 09841 www.gerbergear.com The blades in Gerber knives and multi-tools are engineered from high quality stainless steel that excels at edge retention. Still there comes a time when proper sharpening is called for. For those occasions, we offer an extensive array of sharpening solutions. We're talking about everything from diamond to stone to ceramic to steel. The solution you choose depends on what you're sharpening, and which method you prefer. Whatever the case, Gerber's got you covered. 1.59 oz Gerber Legendary Blades 09841 09841 Diamond Knife Sharpner Gerber

KNIFE, WINCHESTER, POCKET SHARPENER $1.99 KNIFE, WINCHESTER, POCKET SHARPENER

Gerber Diamond Pocket Knife Sharpener $10.99 Knife Sharpener 22-41307 www.gerbergear.com The blades in Gerber knives and multi-tools are engineered from high quality stainless steel that excels at edge retention. Still there comes a time when proper sharpening is called for. For those occasions, we offer an extensive array of sharpening solutions. We're talking about everything from diamond to stone to ceramic to steel. The solution you choose depends on what you're sharpening, and which method you prefer. 1 Year Limited Gerber Legendary Blades Diamond Pocket Knife Sharpener Gerber

Gerber 04307 Pocket Knife Sharpener $1.63 Gerber 04307 Pocket Knife Sharpener The blades in Gerber knives and multi-tools are engineered from high quality stainless steel that excels at edge retention. Still there comes a time when proper sharpening is called for. For those occasions, we offer an extensive array of sharpening solutions. We're talking about everything from diamond to stone to ceramic to steel. The solution you choose depends on what you're sharpening, and which method you prefer. Whatever the case, Gerber's got you covered. Gerber 04307 Pocket Knife Sharpener Features: • Manufactured with coarse and fine ceramic stones set at proper grinding angles to put an edge on any worn blade • Weighs under 1 ounce for easy carrying • Molded plastic case • Packaging Type: Clam • Package Details: Length: 0.5inch; Width: 3.75inch; Height: 6inch; Weight: 0.5lbs

Global 8.25-in. Ceramic Whetstone/Knife Sharpener $65.95 This sharpening stone works by removing the first level of molecules from the blade of your knife, exposing a new edge. It is made from dense ceramic, which is harder than other stones and will show less wear. You won't see any dips or valleys develop in this stone, as they do in softer stones. It provides ample area on which to draw an edge down and across. (Grit is medium 1000.)

Tri-Seps Serrated Knife Sharpener $6.25 Gatco Sharpeners 60016 Tri-Seps Serrated Knife Sharpener Gatco customers include sportsmen, tradesmen, police, military personnel, special operations team members, firefighters, paramedics, first responders, EMT personnel, mechanics, professional chef's, homemakers and do-it-yourselfers. They strive to provide fine quality sharpeners, knives and tools to help make any work more productive, and leisure time more enjoyable. Designed to be the fastest sharpener to rebevel serrations. Millions of monocrystalline diamonds resharpen serrations faster and more precisely than any other sharpener. The unique triangular design features two radius sizes to provide for sharpening both large and small serrations. This triangular-shaped, portable ceramic sharpener has a built-in angle guide to restore a razor sharp edge to serrations, plain edges, scissors, fish hooks and other pointed instruments. It includes a military-spec bead chain and clasp. The unique triangular design features two radius sizes and provides sharpening for both large and small serrations. Gatco Sharpeners 60016 Tri-Seps Serrated Knife Sharpener Features: • Made of monocrystalline diamonds • Sharpens all plain blades • Unique triangular design features two radius sizes to provide for sharpening both large and small serrations • Also features two groove sizes for sharpening fish hooks, darts, ice picks, scribes, awls and other pointed instruments • Made In: United States Gatco Sharpeners 60016 Tri-Seps Serrated Knife Sharpener Specifications: • Overall length: 4.5" (115 mm) • Weight: 1 lb.

Smith's Sharpeners CCKB Two-Step Knife Sharpener, 24 Units $77.94 Smith's Sharpeners CCKB Two-Step Knife Sharpener, 24 Units Features 24 of the Two Step Knife Sharpener in a counter display container. Smith's Sharpeners CCKB Two-Step Knife Sharpener, 24 Units Features: • Material: Carbide & Ceramic • Type: Hand-Held • Size: N/A • Special Features: Counter Display Promotes Impulse Buying, Clear Plastic Container Holds 24 Two Step Sharpeners, Key Chain on Each Sharpener for Carrying

828777 - Santoprene Stainless Steel 6 Chef's Knife with Sharpener $16.22 Make short work of food preparation with this chef's knife. The 15cm (6") knife has a high-quality stone polished stainless steel blade and a black Santoprene handle with a metal end cap. It comes with its own sharpener with ceramic grinder and tungsten carbide sharpener. Not available for purchase by anyone under 18.

Jokari Ultimate Knife Sharpener by Jokari, Black $6.99 Ultimate Knife Sharpener by Jokari

Edlund Electric Knife Sharpener, Each, Silver $439.95 Electric Knife Sharpener, Each

Salter Electric Knife Sharpener. $49.95 Patented ceramic sharpening mechanism. Self-adjusts to angle of blade. Simple one-touch operation. Attractive stainless steel casing.Mains powered. Manufacturers 2 year guarantee.

Diamond Tri-Seps Serrated Knife Sharpener $13.75 Gatco Sharpeners 60616 Diamond Tri-Seps Serrated Knife Sharpener Gatco customers include sportsmen, tradesmen, police, military personnel, special operations team members, firefighters, paramedics, first responders, EMT personnel, mechanics, professional chef's, homemakers and do-it-yourselfers. They strive to provide fine quality sharpeners, knives and tools to help make any work more productive, and leisure time more enjoyable. Designed to be the fastest sharpener with two radius sizes for rebeveling both large and small serrations. It also features two groove sizes for fish hooks, darts, ice picks, scribes, awls and other pointed instruments. This triangular shaped, portable ceramic sharpener has a built-in angle guide to quickly restore a sharp edge. Sharpens both plain and serrated blades. Gatco Sharpeners 60616 Diamond Tri-Seps Serrated Knife Sharpener Features: • Knife Sharpener • Triangle shape sharpens plain edges, serrated edges, and fish hooks • Diamond coated Ceramic • Made In: United States

Kuhn Rikon 6-in. Mini-Pro Knife Sharpener $19.95 Mini-Pro Knife Sharpener safely sharpens nonstick blades with its powerful ceramic sharpening wheel. Hand guard and non-slip feet. Closes down to handy compact size for storage. Features: Designed and engineered in Switzerland. Sharpens Japanese and German style blades, as well as nonstick coated blades. Quality ceramic stone made by Kyocera, Japan gives a perfect edge every time. Hand guard and non-slip feet for extra safety. Compact size for easy storage and traveling.

Knife Sharpener $11.44 AccuSharp 1 Knife Sharpener The large handle fits either hand safely and securely. The full length guard protects fingers. Sharpening blades are diamond honed tungsten carbide and provide years of reliable use. AccuSharp will not rust and can be cleaned with soap and water, or in the dishwasher. AccuSharp 1 Knife Sharpener Features: • Made In: United States

Jokari Deluxe Ultimate Knife Sharpener by Jokari, Black $7.99 Deluxe Ultimate Knife Sharpener by Jokari

Zwilling JA Henckels Twin Select Knife Sharpener $19.95 This innovative and knife sharpener has two separate sharpening modules. It is easy to use because the sharpening angle is pre-set. It enables you to be confident that you have the proper angle. The first module allows you to gently remove small damages to the knife edge. Module 2 gently smooths the edge and restores the knife to its best sharpness. Module I has steel wheels for coarse sharpening, pre-sharpening. Module II has ceramic wheels for fine sharpening and smoothing. This knife sharpener may only be used for uncoated knives with a straight edge How to use the Henckels Twin Select Knife Sharpener 1. Place the TWINSHARP Select on an even, anti-slip surface. Make sure it is firmly in place. 2. Place the end of the cutting edge of the knife(near the handle) in a 90 degree angle into the first module. Draw the blade with a little pressure towards yourself. Do not apply too much pressure or use a see-saw movement. Depending upon the degree of bluntness, you may have to repeat the process up to five times. 3. If your knife is very dull, use module I first followed by module II. A knif with a small degree of dullness may only require Module II to bring it back to its original sharpness. 4. Check the result by cutting into a sheet of paper. Important note: No liquids are necessary to sharpen knives with the TWINSHARP Select. To clean the TWINSHARP Select, simply turn it upside down to get rid of the residual sharpening dust. Use a dry soft cloth to clean the exterior of the TWINSHARP Select. Avoid wet cleaning and never put it in a dishwasher as this might damage your TWINSHARP Select beyond repair. Never try to open your TWINSHARP Select. Do not drop your TWINSHARP Select. Your TWINSHARP Select is not designed to sharpen specialty knives or scissors. The pre-set angle of the sharpening wheels is for household knives only. To sharpen Asian knives, a different angle is necessary. Do not use the TWINSHARP select to sharpen Asian knives Henckels 32601-003

Progressive Knife Pro - Knife Sharpener - Blue/White by Progressive $10.99 Knife Pro - Knife Sharpener - Blue/White by Progressive

Zwilling J.A. Henckels Twin Select Knife Sharpener $19.95 Suitable for all quality knives with non-coated blades, this sharpener features two slits (one with steel wheels for coarse and pre-sharpening; another with ceramic wheels for fine sharpening and smoothing). Made for right- or left-handed use, it's safe and stable with its non-skid feet.

830194 - Prepology 3 stage knife sharpener with ceramic wheels $12.27 Prepology has made knife sharpening easier and more effective with this innovative three-stage design. It uses three different sets of progressively coarser wheels to hone your knife blade after each use or to sharpen any overly dull blade - giving you professional results with ease. The first slot is made with tungsten carbonate, the second is diamond steel for rough grinding, and the third slot is ceramic for fine-edge grinding. Measures about 20.3cm x 4.6cm x 0.9" (8" x 1.8" x 2.5"). Not for use on knives with serrated edges. Hand wash.

Smith's Edgeware Diamond Edge Gourmet Electric Knife and Scissors Sharpener $122.95 Smith's Edgeware Diamond Edge Gourmet Electric Knife and Scissors Sharpener was recently selected as a finalist in the 2009 Housewares Design Awards. The Edgeware Gourmet Knife Sharpener offers the flexibility of both electric and manual sharpening in one product. Smith's Gourmet Sharpener can sharpen extremely dull blades, maintain sharp edges on serrated knives, and sharpen most household scissors. Smith's Diamond Edge Gourmet Electric Knife and Scissors Sharpener offers factory edge results every time you sharpen. Simultaneously sharpens both sides of the blade Sharpens serrated knives Includes retractable scissors sharpener Interlocking diamond coated wheels for fast and precise sharpening Sharpens alloy, carbon, or stainless steel in electric sharpener slot Equal sharpening treatment on both sides of knives Sharpens both sides of your scissors at same time Manual side includes ceramic finishing stone Comfort grip offers stability and safety while sharpening Includes magnetic collection Strip Extra safe from non-slip rubber feet that provide good stability Clean with a soft, damp cloth Limited warranty Made in the USA Smith's Abrasive 50006

Wusthof Sharpening 2-Stage Handheld Sharpener $19.95 This handheld, 2-stage sharpener consists of tungsten carbide heads for quick sharpening and fine ceramic rods for honing. Lightweight design makes it easy to use and carry. A must-have for maintaining knives in top-notch condition.

Wusthof Knife Sharpener $56.95 The Knife Sharpener for Professional Results Sharpen the edge of your knife just as easily by moving the blade back and forth between the wheels Guaranteed for an extremely sharp, long lasting new edge Wusthof 4343

Anolon Advanced Cutlery Sharpener, Bronze $29.95 Sharpening knives has never been easier or more effective. This Universal Sharpener uses three different sets of progressively coarser ceramic wheels inside a water chamber to hone your blade after each use or sharpen an overly dull knife. Features: Easy to use sharpener provides professional results with no complication. Three stage sharpener progressively sharpens and hones your blade for renewed effectiveness.

Edgemate Carbide Knife Sharpener $12.5 Gatco Sharpeners 40001 Edgemate Carbide Knife Sharpener Gatco customers include sportsmen, tradesmen, police, military personnel, special operations team members, firefighters, paramedics, first responders, EMT personnel, mechanics, professional chef's, homemakers and do-it-yourselfers. They strive to provide fine quality sharpeners, knives and tools to help make any work more productive, and leisure time more enjoyable. Features 6061-T2 aluminum tungsten carbide sharpening bits and a CNC checkered handle for a more secure grip. Overall length is 5.00 in. This sharpener is only used for plain edge blades. Gatco Sharpeners 40001 Edgemate Carbide Knife Sharpener Features: • Edgemate Carbide Knife Sharpener • Two tungsten carbide sharpening bits set at a 25 degree angle • Hard anodized 6061-T2 aluminum • CNC checkering for secure grip • 5" overall • Made In: China

Chef'sChoice Electric Knife Sharpener for Asian Knives $79.95 Chef'sChoice Electric Knife Sharpener for Asian Knives Chef's Choice 316

E-Z Sharp Knife Sharpener, Handheld, EZ Sharp, Each, White $9.25 Knife Sharpener, Handheld, EZ Sharp, Each

Franklin Machine Products Knife Sharpener Replacement Blades, Set of 2, Black $8.95 Knife Sharpener Replacement Blades, Set of 2

Gerber 22-41307 Diamond Pocket Sharpener $1.66 Gerber 22-41307 Diamond Pocket Sharpener The blades in Gerber knives and multi-tools are engineered from high quality stainless steel that excels at edge retention. Still there comes a time when proper sharpening is called for. For those occasions, we offer an extensive array of sharpening solutions. We're talking about everything from diamond to stone to ceramic to steel. The solution you choose depends on what you're sharpening, and which method you prefer. Whatever the case, Gerber's got you covered. Gerber 22-41307 Diamond Pocket Sharpener Features: • Fine diamond rods for razor sharpness • Coarse diamond rods for aggressive sharpening Gerber 22-41307 Diamond Pocket Sharpener Specifications: • Packaging Type: Clam • Package Details: Length: 0.5inch; Width: 3.75inch; Height: 6inch; Weight: 0.5lbs

AccuSharp 9-in. Knife Sharpener $10.95 Finally, a Knife Sharpener anyone can use! No more messy oils or stones. In about 10 seconds, sharpen knives, (even serrated knives), cleavers, axes, machetes, and many other cutting tools. The large ergonomic handle fits either hand safely and securely. The full length finger guard protects your fingers. Sharpening blades are Diamond Honed Tungsten Carbide for years of reliable use. AccuSharp Knife Sharpeners will not rust and can be cleaned with soap and water or in the dishwasher.

Columbia River Knife & Tool VEFF1 Veff Sharp-600 Diamond Grit Stepped Knife Sharpener $32 Columbia River Knife & Tool VEFF1 Veff Sharp-600 Diamond Grit Stepped Knife Sharpener Tom Veff is well known as the preeminent professional knife sharpener in the Pacific Northwest, and also as the designer of our patented* Veff™ Serrations. He is truly "addicted to sharp," as are many other knife owners. But Tom was unhappy with the tapered diamond sharpeners that were available, so he designed the CRKT Veff Sharp™ to be the ultimate portable multipurpose field and bench sharpener. The system includes an anodized knurled aluminum handle and two threaded 600-grit diamond-coated sharpening rods. The smaller rod has three 2" straight sections in sizes 3/32", 3/16", and 1/4". The larger rod has three straight sections in sizes 11/32", 1/2" and 5/8". The larger rod also has a 6" flat side. The handle and rods fit neatly in a nylon storage pouch. The Veff Sharp is effective on most serrations and does not create egg-shaped serrations as tapered sharpeners do. It works equally well on gut hook knives and seat belt cutters. It is a versatile and indispensable tool that belongs in every workshop, tool box, tackle box and hunter's pack. It allows the user to keep a keen edge on all types of cutting tools including serrated and plain edge knives, wood chisels, wood carving and lathe tools, router bits, punches, scissors and saw chain. Proper use and care will ensure a lifetime of effective use. Light to moderate pressure is all that is needed for the diamonds to do their job. On most tools to be sharpened, simply blacken the cutting edge with a black ink marking pen. Then, following the original angle of the cutting edge, make a couple of strokes with the appropriate size of the rod across the edge. If you have the correct angle, the ink will be removed evenly. Once you have sharpened the first side of the edge correctly, you will have a burr on the back or flat side of the blade edge. Remove this burr by using the flat side of the sharpener and place it almost flat on the burr side of the edge. Use light pressure and draw the sharpener across the burr until it is removed. This will leave you with a keen cutting edge. After each use, wipe the diamond sharpeners with rubbing alcohol to clean. Use Veff Sharp dry– without oil or water. With a little practice, you'll find it easy to restore the edges on all of your cutting tools. And like Tom Veff, you'll get addicted to sharp. Columbia River Knife & Tool VEFF1 Veff Sharp-600 Diamond Grit Stepped Knife Sharpener Features: • Grit: 600 Diamond • Handle: Length: 2.625" (67 mm) • Rod 1: Length: 6.38" (162 mm) • Weight: 2.9 oz. (82 g) • Rod 2: Length: 5.88" (149 mm) • Weight: 2.0 oz. (57 g)

Project Knife block with 7 Knives and Sharpener $410 -Oak and stainless steel knife block; contains chef?s knife 8", bread knife 8", chef?s knife 6", filet knife 6", paring knife 3 1/4", Japanese chef?s knife 6 1/2", tomato knife 4 3/4", and sharpener. Knife block -Hand wash

Smith's Sharpeners CCD4 3 in 1 Sharpener $19.63 Smith's Sharpeners CCD4 3 in 1 Sharpener Smith's Sharpeners CCD4 3 in 1 Sharpener Features: • Material: Carbide, Ceramic, & Diamond • Type: Counter • Grit: Coarse/750/800 • Size: N/A • Special Features: Pre-Set Sharpening Angles, Triangular Shaped Ceramic Rods Provide Multi-Use Sharpening Capabilities, Hand Guard, Compartment for Rod Storage, Sharpening Groove for Hooks and Pointed Tools, Carbide Blades for Quick Edge Setting

Chef's Choice Knife Sharpener $89 This Chef's Choice Professional Electric Knife Sharpener 110 safely and quickly gives kitchen, sports, and pocket knives an incredibly sharp, longer-lasting edge with no guesswork. Patented 3-stage process, 100% diamond abrasives and foolproof magnetic guides create razor-sharp edges. Sharpens the entire edge of kitchen, fishing, hunting and pocketknives. Safe for quality knives. Acclaimed worldwide by serious cooks and renowned chefs. Two-year limited warranty. Assembled in the U.S.A.Available in white (110W) and chrome (110C).

Wusthof Sharpening Electric Knife Sharpener $199.95 Great knives require a great sharpener to maintain the exceptionally sharp edge. This sharpener uses a combination of sharpening methods to keep your knives in top condition. The sharpener features interlocking diamond wheels devoloped by Norton for long lasting use. The sharpener is very easy to use and sharpens both sides of the blade at once. The sharpener has two stages. A well worn knife will require a few passes in the course stage and be finished in the fine stage. Most knives can be maintained in the fine stage. The house is sturdy brushed and has non slip feet for steadiness when sharpening. A magnetic swarf tray will keep metal away from the sharpening area.

Waring Professional Knife Sharpener, 3-stage $99.95 This professional electric knife sharpener is another sharpening breakthrough. The Professional 3-Stage Knife Sharpener incorporates disks in Stages 1 and 2 to begin the sharpening process and a revolutionary stropping/polishing disk in Stage 3. In just seconds, an edge of unprecedented sharpness and durability is obtained on fine edge (straight edge) and serrated knives. It measures 7.7-in. wide x 14.9-in. deep x 6.3-in. high and comes with a 5-Year limited motor.