Hole saw D. 30mm cut T. 38mm 4/6 combi tooth HSS bi-metal without accessories. Promat HSS bi-metal features an unbreakable construction suitable for cutting round holes in practically all machinable materials, including cast iron, copper, bronze, aluminum, and wood. All dimensions have a 4/6 combination tooth and can be used up to a cutting depth of 38 mm. The corresponding mounting shanks enable quick and easy clamping in hand-held or stationary drills. Supplied without shank. Further technical information: design without accessories, toothing 4/6 combination tooth.