Countersink Drill Bit Set, 5 Pcs Woodworking Tapered Drill Bits For #4, 6, 8, 5 Pcs Countersink Drill Bit Set, with 1/4" Hex Shank Quick Replacement Bit Holder, Hex Wrench Features: Tips for Operation: Specifications: Package includes: Notes: Product Features Countersink Drill Bit Set: the 5 pcs woodworking counterbore hole drill bits set includes five commonly applied sizes of countersink drill bits - #4 (7/64"), #6 (9/64"), #8 (11/64"), #10 (3/16"), #12 (7/32"), a 1/4" hex shank quick replacement bit holder, and a hex wrench; These sizes are suitable for the needs of cabinet and furniture makers, as well as woodworking professionals or beginners Cutting Depth Adjustable: the counter sink drill bits involve two adjustable screws that can be moved up or down the shank of the bit to limit how far the drill penetrates into the material; The adjustable counter sleeve depth can be easily modified using the included hex wrench, ensuring a precise control over hole drill depth and enhancing the functionality and usability of countersink drill bit sets Durable HSS Material: crafted from HSS high speed steel, these tapered drill bits for wood are not easy to break and rust, providing precision and performance you can rely on, suitable for a wide range of materials, such as softwoods, soft metals, plastic, plywood, fiberboard, particleboard, other composite wood products, applied for carpentry, woodworking, metalworking, cabinetmaking, etc Included Quick Replacement Bit Holder: the 1/4 inch hex shank magnetic drill bit holder serves as a convenient accessory for quickly swapping out countersink drill bits during drilling operations, whose extended torsion zone can help absorb the high torque of impact drivers, ensuring you that your bits stay in place and never wobble while in use, good for working with hard to reach screws Important Tips: 1. Ensure that the drill and workpiece are properly aligned before drilling; 2. Choose the appropriate drill speed based on the material; 3. Cool down excessive heat buildup while drilling; 4. Regularly inspect depth settings of the counter sleeve with different materials or changing bit sizes; 5. Check drill bits for any signs of damage or wear before drilling; 6. Clean and Store the drill bits after each use 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!