MD B177 D:7.5 Drill Bit

Integral hard metal drill bit 3 x D with TiAlN coating, with interior cooling and cut to the right 140o point angle, 30o spiral angle; special cut geometry for straight drill without pre-punched which at the same time ensures perfect concentracity; special sharpening of the channels to reduce the coefficient of friction, improving the extraction of vibrate; allows to work both dry and with external cooling Diameter: 7.5