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Countersink Drill Bits
Countersink drill bits are specialized tools used to create a conical recess for screw heads, allowing them to sit flush or below the material’s surface. These bits are essential for woodworking, metalworking, and plastic fabrication, helping to achieve a professional and aesthetic finish. Made from high-quality alloy or carbide steel, countersink drill bits provide smooth cutting action and excellent chip removal. Their precise angle design minimizes burrs and prevents cracking or chipping around the drilled hole. Available in various sizes and configurations, they are suitable for use with hand drills, bench drills, and CNC machines. Ideal for furniture assembly, cabinetry, and general construction, these bits enhance the strength and appearance of your fastening work.
Adjustable Countersink Drill Bit
| CUT CUT DIAMETER |
BIT DIAMETER | SHANK DIAMETER |
HANDLE LENGTH |
TOTAL LENGTH |
MONEY | BOX | QTY |
| 8.0 | 2.8-3.5 | 8.0 | 30 | 60 | 5.1 | 30 | 600 |
| 8.0 | 4.0-5.0 | 8.0 | 30 | 60 | 5.6 | 30 | 600 |
| 9.5 | 3.0-3.5 | 8.0 | 30 | 60 | 5.1 | 30 | 600 |
| 9.5 | 4.0-5.0 | 8.0 | 30 | 60 | 5.6 | 30 | 600 |
| 10.0 | 3.5-3.5 | 8.0 | 30 | 60 | 5.1 | 30 | 600 |
| 10.0 | 4.0-4.5 | 8.0 | 30 | 60 | 5.6 | 30 | 600 |
Hexagonal Shank Adjustable Countersink Drill Bit
| B002-1 | |||||||
| CUT CUT DIAMETER | BIT DIAMETER | SHANK DIAMETER | HANDLE LENGTH |
TOTAL LENGTH |
MONEY | BOX | QTY |
| 8.0 | 2.8-3.5 | 6.35 | 25 | 56 | 6.6 | 30 | 600 |
| 9.5 | 2.8-3.5 | 6.35 | 25 | 56 | 7.1 | 30 | 600 |
| 10.0 | 2.8-3.5 | 6.35 | 25 | 56 | 7.1 | 30 | 600 |
Hexagonal Shank Adjustable Countersink Drill Bit
| B002-2 | |||||||
| CUT CUT DIAMETER |
BIT DIAMETER | SHANK DIAMETER |
HANDLE LENGTH |
TOTAL LENGTH |
MONEY | BOX | QTY |
| 8.0 | 2.8-3.5 | 6.35 | 25 | 56 | 9.6 | 30 | 600 |
| 9.5 | 2.8-3.5 | 6.35 | 25 | 56 | 10.1 | 30 | 600 |
| 10.0 | 2.8-3.5 | 6.35 | 25 | 56 | 10.1 | 30 | 600 |
Hexagonal Shank Adjustable Limit Countersink Drill Bit
| CUT CUT DIAMETER |
BIT DIAMETER | SHANK DIAMETER |
HANDLE LENGTH |
TOTAL LENGTH |
MONEY | BOX | QTY |
| 8.0 | 2.0-3.5 | 6.35 | 29 | 70 | 21 | 20 | 200 |
| 9.5 | 2.0-5.0 | 6.35 | 29 | 70 | 21 | 20 | 200 |
| 10.0 | 2.0-5.0 | 6.35 | 29 | 70 | 21 | 20 | 200 |
Hexagonal Shank Adjustable Limit Countersink Drill Bit
| CUT CUT DIAMETER |
BIT DIAMETER | SHANK DIAMETER |
HANDLE LENGTH |
TOTAL LENGTH |
MONEY | BOX | QTY |
| 8.0 | 2.0-3.5 | 6.35 | 29 | 70 | 21 | 20 | 200 |
| 9.5 | 2.0-5.0 | 6.35 | 29 | 70 | 21 | 20 | 200 |
| 10.0 | 2.0-5.0 | 6.35 | 29 | 70 | 21 | 20 | 200 |
Countersink Drill Bits Industry Knowledge
About CHENGGONG
Yueqing Chenggong Tools Co., Ltd. was established in 2001. The company produces glass drill bits, woodworking milling cutters, countersink drills, marble hole openers, branch drills, woodworking hole openers, aircraft-type woodworking hole openers, ceramic alloy drill bits, Aluminum plate forming knives, etc., are one of the professional manufacturers in China and one of the important suppliers in the world.
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Xiyan Village Industrial Zone, Qingjiang Town, Yueqing City, Zhejiang ProvinceChina
+(86) 577-62265666 / +(86) 577-62265988
+(86) 13706603579 / +(86) 13757787688
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