Tecwerk Drill bit holder E1 DIN 69871 AD/B clamping dm 25 mm SK40 projecting length 70 m

For indexable insert drill. With steep taper according to DIN 69871 Shape AD/B. With central coolant supply and resealable cooling channels on the collar. For mounting indexable insert drills with cylindrical shaft and lateral pulling face according to DIN 1835-B. Bore tolerance H4