7Pcs M2 Countersink Drill Bit Set, 3in1 Wood Pilot Countersink Drill Bits Drilling #4#6#8#10#12 Screws Holes, with Adjustable Depth Stop, Quick Release Hex Shank, 2-Allen Wrench 7 Pcs Countersink Drill Bits

Easier & Faster – 3in1 Drill Countersink and Counterbore in one step, with this 7 Pcs M2 Countersink Set you can get perfect counterbored holes for #4 #6 #8 #10 #10 #12 #12 screws without changing bits
Meet All the Needs – with popular 82 Degrees Countersink and 10mm (3/8”) Counterbore Bits - You can either have the head of the screw below the surface then conceal it with matching wood plugs, or fit flush with the surface
Cutting Depth Adjustable – You may need holes for long or short screws; these counterbore Drill Bits with Adjustable Depth Stop to fit the length of your screws; just tighten the pilot drill bit with the hex key (included) to the Countersink sleeve
Fit Most Tools – 6mm hex shank design compatible with most quick-change chuck machines or power drills; Includes 7 pieces of Drill/Countersink/Counterbore 3in1 bits in sizes 2 mm, 2.5 mm, 2.5 mm, 3.2 mm, 3.5 mm
For Hardwood & Softwood - The HSS M2 Grade countersink drill bit perform well in softwood or hardwood and serve the needs of most woodworkers; when drilling softwood, please use the one size smaller bit