Irwin 15 Piece Titanium HSS Drill Bit Set DIN 338 1.5 to 10 mm

DIN 338 TITANIUM. Drill bits made of top quality high speed steel (HSS) and provided with 2.5"" titanium nitride coating. TIN coating hardens the surface to 80 HRC and is wear resistant. TIN coating produces a lower friction effect thus allowing for higher-speed drilling and lower heating. A 135 degree dual sharpening for higher speed and easier alignment. Recommended for drilling of materials with compressive strength up to 1000 N/mm2. Set includes 1,5; 2; 2,5; 3; 3,5; 4; 4,5; 5; 5,5; 6; 6,5; 7; 8; 9; 10 mm drills.