Twist drills with internal cooling HSS / Ø 13.000 mm / h8 / Company std.

Twist drills with coolant duct, flute length to company standard HSS / Ø 13.000 mm h8 / MK-3 / Company std. / Surface: steam tempered / Type: N / Cutting direction: right-hand / relieved cone 170°
Execution: Web thinning ≥ Ø 8.000 mm • relieved cone • special point geometry with 170º point angle and 90º centre point • very good self-centering • axial and radial coolant supply through Morse taper shank (similar to DIN 228 form BK) • opening and closing the necessary coolant supply possible with the supplied screw
 Application: optimised for the machining of steel beams on beam drill-saw lines • steel and cast steel, grey cast iron • austenitic steels up to 800 N/mm²