Spiral Drill Bit DIN 338 4.2 mm High-Speed Steel Cobalt

• Ground Drill Bit Set made of high-performance high speed steel, with Cobalt Alloy.
• The completely ground bits ensure increased drilling precision.
• High-performance spiral drill bits for all normal drilling jobs with all common materials. The cobalt content ensures high temperature resistance.
• Usage: For unalloyed and alloy steels (up to 1100 N/mm² strength), Warmund Kaltarbe of its steels, Vergütungs and use steels as well as for Rostund acid resistant steels.
• Packaging unit: in SB case

Powerful, ground twist drill made from high performance high speed steel. The fully ground twist drill has increased concentricity, with cobalt alloy. The cobalt content ensures higher heat hardness resistance. Areas of application: for unalloyed and alloyed steels (up to 1100 N/mm² strength), hot cold working steels, tempering and application steels as well as for stainless and acid-resistant steels.Technical data: diameter: 4.20 mm total length: 75.0 mm Spiral length: 43.0 mm tip grinding: tapered jacket grinding cutout: from Ø 3.0 mm cross-sharpening according to DIN 1412 C Tip Angle: 130° Spiral Angle: 20-30° Diameter Tolerance: h8 Surface: golden brown right cutting Packing unit: 1 piece in self-service bag