Ruko Terrax HSS-CO5 Spiral Drill Bits 4.2 mm Pack of 10 in Plastic Pack

• Ground twist drill from high-speed steel with increased cobalt content.
• The cobalt content ensures a high heat resistance.
• The complete ground spiral bit has an increased concentricity.
• Powerful twist drill suitable for all normal drilling in conventional materials.

Twist drill DIN 338 type N HSS-G Co 5 Powerful twist drill suitable for all normal drilling in conventional materials. Ground twist drill from high-speed steel with increased cobalt content. The complete ground spiral bit has an increased concentricity. The cobalt content ensures a high heat resistance. Applications: for unalloyed and alloyed steels (up to 1100 N/mm² Strength), hot and cold working steel, tempered and hardened steel and for stainless and acid resistant steels. Technical details:Diameter: 4.2 mm Overall length: 75.0 mm Spiral length: 43.0 mm Point geometry: Conical section Point thinning: Split point according to DIN 1412 C * Point angle: 130° Spiral angle: 20-30° Tolerance of diameter: h8 Surface: golden-brown Right-hand cutting Package unit: 10 piece in plastic packagingSplit point according to DIN 1412 C Application: For drills with very strong core for particularly tough, hard materials and gun drills. Advantages: Good centring, low feed force. By clamping distribution improved chip evacuation.Cons: Immaculate regrinding only possible mechanically.