TERRAX A250214T - Juego brocas DIN 338 Tipo N HSS-TiN rectificadas 19 piezas A116721A250214

• Ground twist drill made of high speed steel plus titanium nitride wear-resistant coating.
• The TiN coating increases the surface to approximately 2,300 HV.
• The TiN coating increases the heat resistant to approximately 600°C.

Twist Drill Set DIN 338 Type N HSS TiN with 19 drill bits Powerful twist drill suitable for all normal drilling in conventional materials. Ground twist drill made of high speed steel plus TiN (Titanium Nitride) wear-resistant coating. The TiN coating increases the surface to approximately 2,300 HV and the heat resistant to approximately 600 C. The ground twist drill has an increased concentricity. Applications: for steel, cast steel alloyed and unalloyed (up to 900 newtons/millimetre of ²strength), grey, malleable, ductile and pressure castings, sintered iron, nickel silver, graphite, short chipping aluminium alloys, brass and bronze. Product details: Diameter: 1.0 mm - 10.0 mm x 0.5 mm increments Drill point: Conical section Point thinning: from Ø 3 mm with split according to DIN 1412 C * Point angle: 118° Spiral angle: 20-30° Tolerance of diameter: h8 Surface: shiny Right-hand cutting Split point according to DIN 1412 CUsage: 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: Flawless regrinding only possible mechanically.