Knife Sharpening Made Easy

Knife Sharpening Information and Equipment



Viel Tools is once again able to ship these sharpeners to the USA.

S5 belt

  We recommend the Viel S-5-M Sander-Grinder

$275 plus shipping   Add to Cart  

$299.95 with optional 1/3 hp motor  Add to Cart

  This machine will sharpen almost anything - knives, chisels, planes irons, garden tools, scissors, etc.
  This is the only belt sander we have found that can be used vertically or horizontally without modification.
  Heavy Duty construction of steel and aluminum (no plastic). Includes 1/4 or 1/3 HP, 1750 rpm motor,
  power cord and switch.
  - 4" x 6-1/2" table
  - Takes standard 1" x 42" abrasive belts
  - Automatic belt tension
  - Two year guarantee

Allow 2 to 4 weeks for delivery

  Viel S-5 Sander-Grinder

  $154 plus shipping   Add to Cart 

  As above, but you supply the motor.  We recommend a 1/4 or 1/3 HP, 1750 rpm motor. These are commonly used as furnace blower motors. No belts included.

  DIY Sander Specials: Viel S-5 for use with PSI variable speed motor. 

  Now available.

Viel with 3 3/4 pulley and PSI
            variable speed motor   Vari-Viel

  Viel S5 sander grinder with 3 3/4"  pulley, bored to 15 mm to fit PSI variable speed motor.  $189.95    

  (Includes adapter plate and instructions)  

(Requires PSI variable speed motor available from Penn State Industries.    1-800-377-7297)

   3/4 hp imotor is now available ZTCLC10VMO  $80
   ZTCLVS-70 1/2 hp motor  $50

The 3/4 hp motor and controller can also be purchased as TCLVSKIT2 Lathe conversion Kit $170

Max RPM is 1700. Coupled with a 3 3/4 " pulley this gives a max belt speed of 1668 feet per minute. Stock Viel sander is 2747 FPM

Adapter Plate Only $30   

Viel Pulley bored for PSI 15mm arbor    

Viel for grinder

  Viel S-5-B Sander-Grinder for 6" Bench Grinder

  $137.50 plus shipping   Add to Cart  

This will allow you to use all the accessories from the S-5 and S5-M except the S-23.

- Fits on most 6" bench grinder with 1/2" shaft
- Includes a 1" x 30" gr. 120 belt


Belts - Pkg of 6 42" BZ-120 Blue Zirconia belts  $27.00 Add to Cart
Belts - Pkg of 6 30" BZ-120 Blue Zirconia belts  $24.00  Add to Cart

These attachments fit Viel Sander-Grinder S-5, S-5-M and S-5-B 
knife guide 

  S-9 Knife sharpening guide  $21.95  Add to Cart



S-10 Scissor Sharpening Guide  $82.50   Add to Cart


- New holder! More precise and stronger, great for smaller scissors
- New articulated arms now with sealed ball bearings

- Sharpens any kind of scissors: barber, tailor, surgical, grass, etc.
- Easy to follow instructions.
- 2 years guarantee.

drill jig

 S-12 Drill Sharpening Guide

  $110 Add to Cart

Drill grinding attachment S-12 for Viel sander-grinder.

Sharpen your drill bits in less than 30 seconds! This drill grinding attachment is the fastest, the most precise and the easiest to use on the market. This industrial quality tool has a capacity of 1/16" up to 3/4" with a precise concentricity within 0.001". It aligns the drill bit automatically, you just have to:
1-Insert the drill bit into the holder
2-Sharpen one lip
3-Sharpen the other lip
Handwheel with screw included.

blade holder

 S-7 Blade Holder 

$65 Add to Cart

The perfect accessory for fine sharpening of all kind of planer knifes up to 6" long.
Precision hand wheel included.


Accessories are shipped free if ordered with the sander.  Your order may show additional shipping which we will refund when we receive your order. 


There are several good reasons for a knife sharpener to use a belt sander even if you do not it to sharpen knives.  This description is for a Viel Tools S-5 sander/grinder but can be adapted to any belt sander:

1. Reduce the bolster of a chefs knife that has been sharpened in a pull through sharpener and developed a swale or low spot.
Lay the sander down so the belt is horizontal and moving away from you. Hold the blade across the belt just as if you were sharpening, but only grind the bolster. You can improve the appearance by rocking the blade from about 20 to about 50 degrees, or by using the short slack belt section between the platen and the idler wheel. Grind until the bolster is no longer higher than the edge.

2. Reshape a chopping knife with a swale or low spot so it racks against the cutting board. (Santoku, unbolstered chefs knife or bolstered chefs knife after the above operation)

Lay sander horizontal as above. Hold the blade parallel to the belt, spine up, edge down. Rock the cutting edge on a belt until the swale is gone. This requires a platen as long as the blade. Of course you dull the edge in the process, but you CANNOT create negative curvature against a flat platen. If you hold the blade about 45 deg. to either side for the last two passes you start the resharpening process.

3. Grind a strong convex edge on a chopping tool. (Axe or camp knife)

Lay sander horizontal as above, edge across the belt. Sharpen the edge on the short slack section between the platen and the idler wheel. Angle will control how far up the side of the blade you sharpen. Position closer to the platen for stronger edges (axes) and a little further back for a sharper edge (knives)

4. Garden tools that do not open 90 degrees (anvil pruners and grass shears).

Set the sander up so the belt is vertical. Work on the long slack section on the back opposite the platen. Bring the belt between the blades (or blade and anvil) at the sharpening angle. Practice with the sander off to see how it fits and if you can move it the full length of the blade. Careful, the belt is moving UP.

This is a relatively safe operation if the blade and the anvil form a V with a flat bottom (pruner) and relatively dangerous if the blades form a V with a sharp bottom (grass shears). The sharp V will pinch the belt, shred it ($5 gone) and possibly throw the tool. If anyone asks, I do not recommend this.  Do as I say and not as I do. Be careful and WEAR YOUR SAFETY GLASSES!

BZ 120 belts are perfect for sharpening scissors and garden tools and for knife repairs.

For belts of different types and grits we recommend: or

If you need to save some money and are able to build your own belt sharpener, go to this page.

Updated June 7, 2021

e-mail steve at bottorff dot com

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