TJR® Countersink 90° Set of 6 Pieces 1/4", 1/3", 2/5", 1/2", 2/3", 4/5" HSS (4241) Coated, for chamfering. Tool Bits Set for Steel, Aluminum, Brass, Wood, Plastic (Coated in Carton Box) Coated in Carton Box
TJR® Countersink 90° Set of 6 Pieces 1/4", 1/3", 2/5", 1/2", 2/3", 4/5" HSS (4241) Coated, for chamfering. Tool Bits Set for Steel, Aluminum, Brass, Wood, Plastic (Coated in Carton Box)
Product Features
- Set of 6 countersink drill bits in sizes: 1/4", 1/3", 2/5", 1/2", 2/3", and 4/5" (6.3 mm 20.5 mm), supplied in a durable cardboard storage box
- 3-flute design ensures efficient chip evacuation, reduced clogging, and faster, smoother cutting performance
- Manufactured from precision-ground HSS 4241 with protective coating for enhanced durability and wear resistance
- Produces smooth cuts with a refined surface finish, minimizing the need for secondary finishing
- Suitable for both handheld drilling tools and stationary drill presses
- High-Speed Steel (HSS 4241/4341) construction is ideal for drilling standard materials including iron, copper, aluminum alloys, wood, and plastics
- Designed for reliable performance within its intended application range, making it a cost-effective option for hardware retail and bulk supply
- Excellent heat resistance helps maintain hardness during high-temperature operation, supporting consistent performance in repetitive or high-volume tasks
- Widely used across metalworking, woodworking, and general fabrication for precise, clean, and professional results