Insize INSTCS20 20.5mm 3 Flute HSS M2 Countersink

Insize Countersinks are made from 100% M42 Cobalt High Speed Steel. They are used for countersinking holes and deburring in a wide variety of materials, including ferrous and non-ferrous metals. The triple, wide angled fluted design is self-centering allowing the user to provide a heavy, 90 degree, chamfer to the entrance of a drilled hole. This chamfer may also be required to allow the correct seating of a countersink head screw or to provide the lead in for a second machining operation such as tapping. It can be used on medium to hard materials and has the ability to be re-sharpened.

• Size: 3 - 20.5 mm, shank diameter 10mm
• Packaged dimensions: 100(L) x 30(W) x 30(H)mm
• Weight(net): 57 grams