![O'Skool 9/32 Inch x 1/2 Inch Counterbore Drill for 1/4" Screws, Flat countersunk Drill bit, Flat Countersink Drill bit, Stepped Drill, Step Drill - Amazon.com O'Skool 9/32 Inch x 1/2 Inch Counterbore Drill for 1/4" Screws, Flat countersunk Drill bit, Flat Countersink Drill bit, Stepped Drill, Step Drill - Amazon.com](https://m.media-amazon.com/images/I/41Rq+wkA3AL._AC_UF1000,1000_QL80_.jpg)
O'Skool 9/32 Inch x 1/2 Inch Counterbore Drill for 1/4" Screws, Flat countersunk Drill bit, Flat Countersink Drill bit, Stepped Drill, Step Drill - Amazon.com
![5-pc Woodworking Countersink Counterbore Drill Bit Set 3in1 for #6 8 10 12 16 Screws, M2 Pilot Drill Bits Adjustable Depth, 82-Degree Chamfer with Stop, 1/4” Hex Shank, Includes 2 Allen Wrenches - Amazon.com 5-pc Woodworking Countersink Counterbore Drill Bit Set 3in1 for #6 8 10 12 16 Screws, M2 Pilot Drill Bits Adjustable Depth, 82-Degree Chamfer with Stop, 1/4” Hex Shank, Includes 2 Allen Wrenches - Amazon.com](https://m.media-amazon.com/images/I/61UO7glVq3L.jpg)
5-pc Woodworking Countersink Counterbore Drill Bit Set 3in1 for #6 8 10 12 16 Screws, M2 Pilot Drill Bits Adjustable Depth, 82-Degree Chamfer with Stop, 1/4” Hex Shank, Includes 2 Allen Wrenches - Amazon.com
![Link Industries - 0.532″ Drill, 9/16″ Pilot Length, High Speed Steel Bright Finish Combo Drill & Counterbore - 56444003 - MSC Industrial Supply Link Industries - 0.532″ Drill, 9/16″ Pilot Length, High Speed Steel Bright Finish Combo Drill & Counterbore - 56444003 - MSC Industrial Supply](https://cdn.mscdirect.com/global/images/ProductImages/5644400-23.jpg)
Link Industries - 0.532″ Drill, 9/16″ Pilot Length, High Speed Steel Bright Finish Combo Drill & Counterbore - 56444003 - MSC Industrial Supply
![1 1/2" Aircraft Counterbore, Carbide Tipped, (Reduced Shank Counterbore), 3/8" Shank Diameter, 3 Flutes, 2 3/4" OAL, (1.5" Diameter, 1-1/2), 52248, USA Made: Amazon.com: Industrial & Scientific 1 1/2" Aircraft Counterbore, Carbide Tipped, (Reduced Shank Counterbore), 3/8" Shank Diameter, 3 Flutes, 2 3/4" OAL, (1.5" Diameter, 1-1/2), 52248, USA Made: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/41AOpNmEJaL.jpg)
1 1/2" Aircraft Counterbore, Carbide Tipped, (Reduced Shank Counterbore), 3/8" Shank Diameter, 3 Flutes, 2 3/4" OAL, (1.5" Diameter, 1-1/2), 52248, USA Made: Amazon.com: Industrial & Scientific
![5pcs 4 Flutes Counterbore Drill Bit Set Countersink End Mill Cutter Straight Shank Slot Drill Bits Tool Set - Amazon.com 5pcs 4 Flutes Counterbore Drill Bit Set Countersink End Mill Cutter Straight Shank Slot Drill Bits Tool Set - Amazon.com](https://m.media-amazon.com/images/I/61me-dp+-uL.jpg)
5pcs 4 Flutes Counterbore Drill Bit Set Countersink End Mill Cutter Straight Shank Slot Drill Bits Tool Set - Amazon.com
![750 3/4 Diameter Carbide Counterbore, 1/4 Pilot Drill Size (Drill and counterbore in 1 operation for woods, plastics, and non ferrous material) - ID: 6646-CB4 750 3/4 Diameter Carbide Counterbore, 1/4 Pilot Drill Size (Drill and counterbore in 1 operation for woods, plastics, and non ferrous material) - ID: 6646-CB4](https://www.carbideanddiamondtooling.com/assets/images/fullerton/6643-375-pic.jpg)
750 3/4 Diameter Carbide Counterbore, 1/4 Pilot Drill Size (Drill and counterbore in 1 operation for woods, plastics, and non ferrous material) - ID: 6646-CB4
![Counterbore Drill Bit, Quick Chip Removal, 3.2 X 10mm Silver Clear Grooves, Alloy Steel Drill Bit for Plastic Countersink Drill Bit Set - Amazon.com Counterbore Drill Bit, Quick Chip Removal, 3.2 X 10mm Silver Clear Grooves, Alloy Steel Drill Bit for Plastic Countersink Drill Bit Set - Amazon.com](https://m.media-amazon.com/images/I/71WwMOpWoNL.jpg)
Counterbore Drill Bit, Quick Chip Removal, 3.2 X 10mm Silver Clear Grooves, Alloy Steel Drill Bit for Plastic Countersink Drill Bit Set - Amazon.com
![7/8" Counterbore, Carbide Tipped, 3 Flutes, 3/4" Shank Diameter, Straight Shank, 5 3/8" OAL, USA Made, (.875" Diameter), 59811: Amazon.com: Industrial & Scientific 7/8" Counterbore, Carbide Tipped, 3 Flutes, 3/4" Shank Diameter, Straight Shank, 5 3/8" OAL, USA Made, (.875" Diameter), 59811: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/51aEC4ctyKL.jpg)