100% cotton drill back

Can be sharpened for more precise marking

DEXcell® Cement Roof Board is a lightweight

Leads come packaged in a compact plastic case

The ROTOZIP GP8 1/8-Inch Guidepoint Drywall Cutout Zip Bit is for clean cut material up to 1-inch thick

RotoZip GP16 1/8 in. Drywall Guidepoint Cutting Bit (16-Pack) Parts 100% cotton drill backEngineered for durability and performance, the Rotozip GP16 1 8 Inch Drywall Guide point Cutting ZipBit is perfect for controlled drywall cut outs when used with your RotoZip Spiral Saw power tool. The guide point tip traces around outlet boxes and can lights. Zip Bits allow you to cut material up to 1 Inch thick. For use with RotoZip Spiral Saw power tools.