Titanium Coated Woodworking Countersink Drill Bit Set HSS Carpentry Reamer Core Chamfer Countersink(4pcs（3 6mm）+ small wrench +bubble bag)

MULTI-SIZE: There are 10 sizes of 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 7mm, 8mm, 10mm and you can choose the one you need CARBON STEEL+45# STEEL: Drill bit is made from carbon steel and countersink is made from good quality 45# steel which ensures a long service life USED TO: Combined drill bit and countersink bit is great for drilling, chamfering, deburring and countersinking HIGH EFFICIENCY: Five flutes design provides small chip loads and quicker removal, it can discharge wood sawdust more rapidly and smoothly SUITABLE FOR: Suitable for drilling holes on board of low hardness such as wood, plastic and other soft material