3M 7502 Ultimate Half-Facepiece Respirator-Medium Prop 65 - Bisphenol-A Casting sand formulated for use

Casting sand formulated for use in sand casting applications

Color-coded for instant grit identification

Small round or free-form shapes can be raised on the surface using a nylon or steel raising hammer — a technique more efficient than angle raising

6" x 1" format sized for comfortable bench use

Side post positions #3 and #4 are used to sharpen a parallel heel

3M 7502 Ultimate Half-Facepiece Respirator-Medium Prop 65 - Bisphenol-A Casting sand formulated for useThe 3M 7502 Ultimate Half Facepiece Respirator delivers comfort and versatility in a reusable half face design. Constructed from an advanced silicone material that conforms softly to the face, this respirator features 3M's Cool Flow exhalation valve to reduce heat and moisture buildup, making extended wear more comfortable in workshop and studio environments. This listing is for the medium size facepiece only. Filters are sold separately select the