This set of Milwaukee Red Cobalt HSS Ground metal drill bits contains 25 different bit sizes from 1-13mm, all stored neatly within a handy plastic case. Each drill bit features Milwaukee's QUAD EDGE™ tip for supreme performance - a unique combination of a 135deg split point and four cutting edges. This ensures a fast and precise drilling start without walking, and creates smaller chips to reduce heat build-up. These metal drill bits are suitable for drilling high alloy content steels and metals with tensile strengths over 1000 N/mm² like stainless steel. Features: HSS-G metal drill bit set - 25 popular bit sizes from 1-13mm, QUAD EDGE™ tip - unique design for superior performance, 135deg split point - precise and fast drilling starts without walking, Four cutting edges - smaller chips to prevent heat build-up, High speed steel - made from 5% cobalt-alloyed HSS, Tough - suitable for high alloy steels like stainless steel, Enhanced tapered web - for improved durability and strength. Includes: 25x metal drill bits - 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, 8mm, 8.5mm, 9mm, 9.5mm, 10mm, 10.5mm, 11mm, 11.5mm, 12mm, 12.5mm, 13mm.