7 Pcs M2 Countersink Drill Bit Set, 3In1 Wood Pilot Countersink, Allen Wrench Set of 7 Countersink Drill bit Set, 3in1Woodworking Countersink Counterbore Drill Bits Specifications: For Drilling #4 #6 #8 #10 #12 Screws Holes With Adjustable Depth Stop, 1/4? Quick Release Hex Shank, Sizes: 5/64?, 3/32?, 7/64?, 1/8?, 9/64? Include?2-Allen Wrench Functions? To have the head of the screw below thesurface then conceal it with matching wood plugs To have the head of the screw fit flushwith the surface Compatibilities: The high quality M2 pilot drill bits areprecisely ground. It is detachable. You can move it up and down in thecountersink/counterbore sleeve to adjust drill depth to meet multi screwlengths. The cutting angle of the 3 countersinkchamfer cutters is 82 degrees, perfect for popular screw heads. The counterbore is 3/8? in diameter, 1/2?in full depth. They will meet your needs from flush countersinking to a full1/2" of counterbore for dowel buttons or plugs. Reference Chart? Size 5/64 (2mm) for #4 Screw Size 3/32 (2.5mm) for #6 Screw Size 7/64 (2.8mm) for #8 Screw Size 1/8 (3.2mm) for #10 Screw Size 1/8 (3.2mm) for #10 Screw Size 9/64 (3.5mm) for #12 Screw Size 9/64 (3.5mm) for #12 Screw For softwood, we recommend you to use adrill one size smaller than the screw calls for. Product Features Easier Faster ? 3 in1 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 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 / Counterbore sleeve Fit Most Tools ? 1/4" hex shank design compatible with most quick-change chuck machines or power drills; Includes 7 pieces of Drill/Countersink/Counterbore 3in1 bits in sizes 5/64?, 3/32?, 7/64?, 1/8?, 1/8?, 9/64? 9/64?? 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 Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!