This 7pcs tapered countersink drill bit set is made of 4241 HSS and 45#steel with excellent workmanship and durability.It can be installed on drilling machinery with clamp or joint， suitable for drilling on hard wood.7 specifications(3mm， 4mm， 5mm， 6mm， 7mm， 8mm， 10mm)meet your different working demands.Features:The woodworking drill is made of HSS 4241，the middle chamfer drill body is No. 45 steel.Durable and excellent workmanship.Fit for drilling machinery with clamp or joint.7 kinds of specifications(3mm， 4mm， 5mm， 6mm， 7mm， 8mm， 10mm)， meeting your different demands.Chamfer is 5 flutes， can discharge the wood quickly for smooth hole.Suitable for drilling in the hard wood and wood floor.Notice:With this product， it's better to use bench drill because drills may be broken by using electric hand drill(centering is not good in use). Specifications:Material: 4241 HSS + 45# SteelColor: Silver + BlackDrill Size: 3mm， 4mm， 5mm， 6mm， 7mm， 8mm， 10mmChamfer Dia.: 15.8mmDrill Quantity: 7pcsDimensions:3mm(Dia) * 60mm(L)4mm (Dia) * 75mm(L)5mm(Dia) * 85mm(L)6mm (Dia) * 93mm(L)7mm(Dia) * 100mm(L)8mm (Dia) * 110mm(L)10mm(Dia) * 120mm(L)Package Size: Approx. 11 * 11 * 3cm / 4.33 * 4.33 * 1.2in Package Weight: 271g / 9.54oz Package List:1 * 7pcs Carpenter Countersink Drill Set1 * Hex Key"
