[DETAIL] [Features]: 1. Drilling chamfering, once resolved. 2. High-speed steel material, good toughness, high strength. 3. Adjustable counter sleeve depth with wrench 4. Drill and countersink for wood screws without changing bits. 5. Chamfering five edge in the use of the process can be fast discharge sawdust, disposable smooth drilled countersink the screw cap perfectly embedded in the surface. [Specification]: Material: High Speed Steel 4241 Black chamfer drill body material: No. 45 steel Single flute edge chamfer 90 degree Shank: Round handle [ATTRIBUTES] - Hign-concerned Chemical: None - Brand Name: NoEnName_Null - Origin: Mainland China - Hign-concerned Chemical: None - Brand Name: NoEnName_Null - Origin: Mainland China - Model Number: 3-10mm - DIY Supplies: Woodworking - Material: High Carbon Steel - Type: Countersink Drill Bit - Use: Wood Drilling - Length: 120mm