Countersink Drill Bit, Round Shank Carbon Steel Bit with Hex Key Wood DIY Tool for & Plastic(3 10mm(3/4/5/6/7/8/10mm))

GOOD PERFORMANCE-- Countersink drill bit has special five flutes design which provides small chip loads and quicker removal, and allows to discharge wood sawdust more rapidly and smoothly. HIGH QUALITY-- Drill bit is made from high quality carbon steel and countersink is made from good quality 45# steel for a long service life, wear resistant and WIDE APPLICATION-- This countersink bit is can be used for drilling, chamfering, deburring and countersinking. It is a good tool for your wood DIY projects. SUITABLE MATERIAL-- The drill bit is suitable for drilling holes on low hardness material, including wood, plastic and other soft material. 10 OPTIONAL SIZES-- There are 10 optional sizes of 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 7mm, 8mm, 10mm, meet your different requirements.