SwissTech 4.00MM Heavy Duty Cobalt Long Series Drill

Series 4000 HSS-Co Parabolic Flute Straight Shank Long Series Drill TiN Coated - Metric Parabolic flute form drill with high resistance to non-alloyed and alloyed steels. Chipbreaking point performs well on long chipping materials with a tensile strength up to 1,300 N/mm2. Drills up to 5 x diameter. TiN coating provides longer tool life. Point angle 130. Helix angle: high. Web thickness: strengthened. Relief angle: normal. Tolerance of diameter: h8. Tolerance of shank: f11. Manufacturing standard: DIN 340.