1500 Series N95 Healthcare Particulate Respirator and Surgical Mask, Small ORS NASCO and large knurled feed screw

1500 Series N95 Healthcare Particulate Respirator and Surgical Mask, Small ORS NASCO and large knurled feed screw and large knurled feed screw knob give easy control of cutting pressure for clean cuts Models 117 and 118 include a self feeding AUTOFEED® cutter wheel that automatically cuts after tightening the knob only once Model 118 features a special knob for easier tightening of the feed screw Designed primarily to work in conjunction with the Tweco Roto Ground device May also be used for other high amperage grounding applications Clamp is quickly attached or moved from one rotating weldment or fixture to the other without removing the Roto Ground from it Saves welding downtime Contoured shape and soft foam nose cushion for extra comfort Highest ASTM level of fluid resistance on the market (160mm Hg) Meets CDC guidelines for TB exposure control standards The Dura Mesh® shell prevents filter media contact by contaminated gloves or hands