HSS square hole puller, spanner size 24 GRATTEC

Design: HSS, with guide pin.The pin is inserted into the pre-bore of the workpiece ensuring the concentricity of the square inner profile.In order that only one pass is required with a small overall length, a slightly larger outlet opening (H8 tolerance) should be selected.The cutting surfaces are finely ground on all sides and ensure a smooth surface.

Application: for precise production of square inner profiles at right angles.There is no need for special machines or setup times.For the production of machine elements, templates, welding and drilling devices and fixings.The rake angle is prepared for machining steel, but is also suitable for cast iron, bronze and aluminum.