Woodworking Drill Bit With Countersink,8 Pcs Hss Steel Tapered Woodworking Countersink High Speed Woodworking Drill Bits With Hex Wrench Reaming Chamf WOOD DRILL BIT KITIt comes with 8 pieces wood countersink drill bit, a hex wrench. The twist wood bits are 3mm(2pcs), 4mm, 5mm, 6mm, 7mm, 8mm, 10mm, enough to meet your varieties of needs.DURABLE & STURDYOur wood drill bit is made of HSS steel, high hardness, good wear resistance, high heat resistance. Perfect for drilling in wood, plastic, rubber, PVC and other materials, not a power tool, can't fit hard things like steel, iron, stone.USESWood cutters are used for drilling on wooden floor or other hard woods, suitable for bench drill, hammer drill, for drilling machines with chuck and more.QUICK CHIP DISCHARGEWoodworking twist bits have the chip flutes and five-edge beveling machine, can discharge sawdust fast to get a smooth surface on any kind of hard wood.ADJUSTABLE LENGTHThe wood router bit kit accompanied with a hexagon sleeve which is adjustable, to adjust the various length screws by loosening and tightening the screw. can also be used for quick dismantling of accessories.Product Features:Suitable for wood, plastic, rubber, etc., ideal for portable production, maintenance or drilling work.The drill length can be adjusted for different length screws by simply loosening and tightening the grub screws.The round shank shape is smooth, frictionless with the machine, and suitable for most bench or hand drills.Try to keep the drill vertical while drilling, so as not to be uneven.Specifications:Material: HSS steelColor: blackSize:3mm(Dia) x 60mm(L)4mm(Dia)x 75mm(L)5mm(Dia) x 85mm(L)6mm(Dia)x 93mm(L)7mm(Dia) x 100mm(L)8mm(Dia)x 110mm(L)10mm(Dia) x 120mm(L)