13-23mm HSS Spiralbohrer Reduzierter Schaft DIN345 Metallbohrer Stahlbohrer

HSS Spiralbohrer DIN 345 MK Bohrer Morsekegel 1-2-3-4 Konus 13-23mm Konusbohrer. Black Oxide Drill Bits are constructed by heating HSS bits to 950 degrees Fahrenheit. This creates a black oxide finish that will resist rust and corrosion, and also reduces the friction between the bit and the material, which in turn speeds up the drilling process.

eBay