Lisle 33500 Piston Ring Installer

Guide pointed tip cutting bits for plunge cuts in drywall. | Cutting diameter size1/8in,max cut depth:3/4in. | Material:High Speed Steel 65 (M2), Sharp and Wear-resistant. | Drywall router bits used for cut-out location of outlet box by high-speed rotary tool. | This set includes 50 pieces drywall drill bits.