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Quality classification: Profi The description of the tool design: Special holesaw bi-metal with variable pitch of teeth. The teeth HSS are welded on the cylindrical carrier which has a usable length of 300 mm. Incl. Exchangeable hexagon shank (SW 12). Please order separately guiding spike and drill head Tool material: Bimetal HSS M42, 8% Co Recommended r.p.m. and specific example for the most common diameters in the according field of application: great diameters ca. 500 min-1 Description of application: For drilling holes with great diameters in one work step e.g. the lead through of flue and air inlet pipes in roof construction. The high quality hole saw cuts all sorts of insulating materials (fibreglass, rockwool, styrofoam etc.) wood and chipboards and gypsum plaster boards Practical advice and specialty of the tool: Cutting of solid wood thicker than 30 mm, and stone and metal is not possible. The hole saw for carpentry can be used freehand with a strong power drill
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