3M Particulate Filter P3 R 2138 FES492286 stones should be immersed in

stones should be immersed in water for 10 minutes and kept wet during sharpening

52mm OVERALL LENGTH (H) 2-5/16" 58

5 inch (127mm) opening capacity

Compact 50mm length for easy handling

it ensures minimal burrs and no burns

3M Particulate Filter P3 R 2138 FES492286 stones should be immersed inThe 3M Particulate Filter P3 R 2138 are a product from 3M and are Particulate Filters to provide protection against a wide range of dusts, mist and other particles. 3M particulate filters offer low breathing resistance and good balance with a slim, swept back profile, designed to optimise your field of vision when wearing the respirator. Selected filters in the range can be used in conjunction with a 3M 501 filter retainer and a 3M Gas & Vapour Filter