Description
Twist drills extra-long HSS / Ø 12.000 mm h8 / 20xD / MK-1 / Company std. / Surface: nitrided lands / Cutting direction: right-hand / relieved cone 130°
Execution: Web thinning ≥ Ø 6.000 mm • relieved cone • wide flutes • in case of poor chip evacuation • for extremely deep holes
Application: grey cast iron and steels up to 1000 N/mm² • not recommended for: CrNi steels, stainless steels

