RUKO 2501215TRO HSS-G Twist drill bit set 25-piece 1 mm 15 mm 2 mm 25 mm 3 mm 35 mm 4 mm 45 mm 5 mm 55 mm
25-piece spiral drill set DIN 338 Type N HSS G TiN à 1.0 mm to 13.0 mm x 0.5 mm increasing - powerful, ground standard spiral drill bits made of high-performance high-speed work steel. The fully ground twist drill has a precise concentricity. Due to the cross-grinding this drill has a good centering and requires a low feed force. HSS G:High-performance high-speed steel for drilling in well-machined materials with a strength of up to 900 N/mm². The titanium nitrite coating is a universal standard layer. It offers a 300-400% longer service life compared to uncoated tools. Cooling is recommended.This text is machine translated.