TERRAX A214215 - Juegos brocas DIN 338 tipo N HSS rectificadas 25 piezas

• Ground twist drill bit made of high speed steel.
• The complete ground spiral bit has an increased concentricity.
• Powerful twist drill suitable for all normal drilling in conventional materials.

Twist Drill Set DIN 338 Type N HSS G with 25 drill bits Powerful twist drill suitable for all normal drilling in conventional materials. Ground twist drill bit made of high speed steel. The complete ground spiral bit 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 - 13.0 mm x 0.5 mm increments Drill point: Conical section Point thinning: Split point 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 C Usage: 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.