Woodworking Countersink Drill Bits Set 7Pcs Titanium Coated Chamfer Carpentry Reamer Core Drill Bit 3/4/5/6/7/8/10mm with Hex Key

Feature: Compatible with drilling machines with chuck, for drilling on wood. In woodworking project, it is vital to chose a drill bit that is the same diameter as the shafts of your screws and to control the depth of the holes, then this countersink drill bit is a good choice, cause by loosening and tightening the setscrew with a wrench(included), the counter sleeve depth and drilling depth can be easily adjusted for screws of various lengths, that's very convenience.The function of woodworking chamfer can enlarge or countersink holes,deburr edges. 5 flutes design makes it discharge the wood more rapid. The Sink hole disposable drilled smooth, screw cap perfect embedded in the surface of workpiece. Dimension(approx. ) 3mm(Dia) x 60mm(L)?1/9"X2-1/3"? 4mm (Dia)x 75mm(L)?1/6"x2-9/10"? 5mm(Dia) x 85mm(L)?1/5"-3-1/3"? 6mm (Dia)x 93mm(L) ?1/4"-3-11/17"? 7mm (Dia)x 100mm(L) ?7/25"-3-14/15"? 8mm (Dia)x 116mm(L) ?1/3"-4-11/20"? 10mm (Dia)x 120mm(L)?2/5"-4-3/4"? Advantages: Five-Blade for the chamfering device . It can discharge wood chips faster during use, and drill a smooth and flat counterbore at one time to insert the screw cap into the surface of the workpiece. Suitable for bench drills, hand drills and other tools. Special reminder:This product is best to use the bench drill for drilling, because the hand drill is not good at centered during the operation, the drill bit will be easy to bending and breaking! ! ! Package Included 7 x Woodworking chamfer 1 x L-wrench Special Note -It is recommended to use the center punch for position before drilling, keep the drill bit vertical to avoid the drill bit from bending or breaking. -It is recommended that the drill be clamped within a range of 10 mm and bits should be used within the clamp range.