Patented Design Patented DesignThe 2 in 1 design turns two-step countersinking into a one-step operation. This can make perfect countersink holes for both flush-set and plugged screws, without splitting the wood and enjoying neat projects with drill bit sets, and the 1/4" hex shank can be used with power drills and quick-change chucks. Depth Adjustable The tool features a depth adjustable nylon stop collar it can adjust for different length screws and produce a counterbored hole on the wood and ensure consistent countersink depth also protect the work surface and anti-clog debris cavities. Contents 1pc #12(5.5mm) countersink drill bits and 1pc 5/32"(4.0mm) replacement drill and 1pc 2.5mm hex key for easy changing of bits. #8 Countersink Drill Bits with Adjustable Low Friction Depth #10 Countersink Drill Bits with Adjustable Low Friction Depth #12 Countersink Drill Bits with Adjustable Low Friction Depth #14 Countersink Drill Bits with Adjustable Low Friction Depth Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 4.4 out of 5 stars 78 4.4 out of 5 stars 78 4.4 out of 5 stars 78 4.4 out of 5 stars 78 Price $18.99$18.99 $19.99$19.99 $20.99$20.99 $21.99$21.99 LABEAR Part Number LB-00708 LB-00710 LB-00712 LB-00714 Size #8(4.5mm) #10(5.0mm) #12(5.5mm) #14(6.2mm) Contents 1pc #8(4.5mm) countersink drill bits & 1pc 1/8"(3.2mm) replacement drill & 1pc 2.5mm hex key 1pc #10(5.0mm) countersink drill bits & 1pc 9/64"(3.6mm) replacement drill & 1pc 2.5mm hex key 1pc #12(5.5mm) countersink drill bits & 1pc 5/32"(4.0mm) replacement drill & 1pc 2.5mm hex key 1pc #14(6.2mm) countersink drill bits & 1pc 13/64"(5.25mm) replacement drill & 1pc 2.5mm hex key Piece 3 3 3 3 1/4"DR. x1/4" to 3/4" 1/4"DR. x3/16" to 7/8" 1/4"DR. x1/4" to 1-1/8" 1/4"DR. x1/4" to 1-3/8" Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 4.0 out of 5 stars 10 4.0 out of 5 stars 10 4.0 out of 5 stars 10 4.0 out of 5 stars 10 Price $13.99$13.99 $16.99$16.99 $20.99$20.99 $31.99$31.99 LABEAR Part Number LB-001201 LB-001202 LB-001203 LB-001204 Drive Size 1/4 inch 1/4 inch 1/4 inch 1/4 inch Size 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4" 3/16", 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8" 1/4", 21/64", 13/32", 31/64", 9/16", 41/64", 45/64", 49/64", 27/32", 55/64", 7/8", 61/64", 1-1/64", 1-5/64", 1-7/64", 1-1/8" 1/4", 11/32", 27/64", 1/2", 19/32", 11/16", 25/32", 7/8", 31/32", 1-3/64", 1-1/8", 1-7/32", 1-1/4", 1-5/16",1-3/8" Piece 1 1 1 1 Shank Type 1/4" Hex Shank 1/4" Hex Shank 1/4" Hex Shank 1/4" Hex Shank Stainless Steel, Metal Sheet, Aluminum, Wood, Plastic ✓ ✓ ✓ ✓ Tool Flute Type Straight Straight Straight Straight Number of Flutes 9 12 16 15 3/8"DR. x1/4" to 3/4" 3/8"DR. x3/16" to 7/8" 3/8"DR. x1/4" to 1-1/8" 3/8"DR. x1/4" to 1-3/8" Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 4.0 out of 5 stars 10 4.0 out of 5 stars 10 4.0 out of 5 stars 10 4.0 out of 5 stars 10 Price $12.99$12.99 $15.99$15.99 $20.99$20.99 $31.99$31.99 LABEAR Part Number LB-001205 LB-001206 LB-001207 LB-001208 Drive Size 3/8 inch 3/8 inch 3/8 inch 3/8 inch Size 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4" 3/16", 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8" 1/4", 21/64", 13/32", 31/64", 9/16", 41/64", 45/64", 49/64", 27/32", 55/64", 7/8", 61/64", 1-1/64", 1-5/64", 1-7/64", 1-1/8" 1/4", 11/32", 27/64", 1/2", 19/32", 11/16", 25/32", 7/8", 31/32", 1-3/64", 1-1/8", 1-7/32", 1-1/4", 1-5/16", 1-3/8" Piece 1 1 1 1 Shank Type Tri-Flatted Shank Tri-Flatted Shank Tri-Flatted Shank Tri-Flatted Shank Stainless Steel, Metal Sheet, Aluminum, Wood, Plastic ✓ ✓ ✓ ✓ Tool Flute Type Straight Straight Straight Straight Number of Flutes 9 12 16 15