Unika Steel Hole No High-Speed Saw, Flange, 38mm, HSS-38TN

Uses: Thin steel plate (3.2mm thick), aluminum (3.2mm thick), metal siding board, PVC pipe, plywood Caliber: 38mm Effective length: 40mm Total length: 113mm Dedicated L-shaped wrench included Compatible electric motors: Cordless drill (12V or higher), impact driver (torque: 90N-m or higher), electric drill (rotation speed: 300-800 rpm) Perforation thickness: Metal plate approximately 3.2 mm thick / Plywood, PVC board, etc. up to 40 mm thick Caution: Make sure to attach the main body securely to the motor so that the shank does not swing or fall out. Do not reduce the rotation speed too much during drilling, as this may cause jamming. Do not hit the cutting edge against a hard object or apply force to the workpiece when penetrating the center drill, as this will damage the cutting edge. When removing the main body from the workpiece after penetration, make sure to stop the rotation before doing so.