The Milwaukee 48894760 Red Hex Shockwave HSS-Tin Metal Drill Bit Set 19pc is a collection of 1/4in hex shanks for universal use in drill drivers and impact drivers. Each bit is coated with titanium nitride, which works to dispense heat and ensures the bit is more suited to high speed use. The bits have four cutting edges and 135° split point. The split point allows for drilling to be fast and precise without walking, and the cutting edges reduce heat buildup by creating smaller chips. This extensive set is housed in a robust Milwaukee case and is ideal for professional and DIY users.