Amtech 3.5-10mm Drill Bit Sharpener Grinding Stone HSS Sharp Sharpening Machine Bits Brand New 3 Years Amtech Guarantee

Fits all drills with a 43mm collar and a keyed 13mm chuck 

 Suitable for 3.5 - 10mm carbon and HSS drill bits 

 Built-in drill bit guide ensures sharpening at correct angle 

 Gives blunt drill bits a razor sharp cutting edge 

 Supplied with a replacement grinding stone 

Quick and easy to use 

 This product is not suitable for masonry drill bits