The Milwaukee Titanium Red Helix Bit is engineered for impacts and drills. The Variable Helix includes an aggressive 35 degree Helix Angle that ends at 15 degrees. The bit also offers rapid chip removal to limit heat buildup and stay sharp longer. The 135 degree split point tip provides a precision start and helps to prevent walking for quick and accurate holes. The bit is ideal for tough applications and provides up to 3X the life vs black oxide drill bits, and can be used in all drilling applications. The kit includes: 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 and 13mm bits.