Cone drill bit FORUM, HSS, Steam treated, №7 (Ø 4 – 31 mm)

Cone drill bit with engraved diameter scale and steam treated surface. Suitable for precise drilling of sheet metal.

Characteristics:

•  Drilling capacity: Ø 4 – 31 mm

•  Total length: 103 mm

•  Shank length: 25 mm

•  Material: HSS steel

•  Coating: treated with steam

•  Grip: 9 mm

•  Steel < 850 N: recommended

•  Steel < 1000 N: suitable to a limited extent

•  Aluminum, non-ferrous metals, non-ferrous alloy: recommended

•  Use of oil, emulsion: recommended