3.5mm Drilling Dia 2 Flutes HSS 1/4-inch Hex Shank Twist Drill Bit 5pcs

Twist design and split point tip increases cutting speed and clears chips and particles faster. Quick-change 1/4-inch hex shank locks easily into in hex sleeves and quick release chucks that fits all power drills. Used widely to drill the metal and marble is easy to install. Sharp and twisted flute will make the drilling be more easy and effortless. The twist drill bit is used with electrical drilling machine(here is not included).