Description:
1. Excellent for drilling on both flat and curved surfaces such as stainless steel and cast iron.
2. Straight shank design is more suitable for many electric drills (here is not included).
3. Sharp and twisted flute will make the drilling be more easy and effortless.
4. Split Point tip starts on contact to keep the bit from moving for fast accurate holes.
Specification:
Twist Drill Bit
Features: Straight Shank
Material: HSS (High-Speed Steel)
Finish: Black oxide
Bit Diameter: 9.1mm/0.36-inch
Shank Diameter: 9.1mm/0.36-inch
Flute Length: 79mm/3.11-inch
Total Length: 124mm/4.88-inch
Metric Machine Tap
Material: HSS (High-Speed Steel)
Accuracy: H2
Thread Size: M10 x 1
Shank Width: 6.2mm / 0.24-inch
Thread Length: 25.7mm / 1.01-inch
Total Length: 79.5mm / 3.13-inch
Package Content
1 x Twist Drill Bits
2 x Metric Machine Tap
Tips:
1. Recommended hardness of tapping material is not too high: Suitable for most metals, iron plate, copper, zinc, alloy steel, abrasive steel, A3 steel, stainless steel, etc.. Appropriate addition of coolant (e.g., water) can extend the service life when tapping.
2. Please control speed according to material hardness. The higher the hardness, the slower the speed. Fast speed with small torque; slow speed with high torque. The force must be uniform in tapping operations.
3. First drill the hole with twist drill, and then use the taps tapping. Tapping angle should be vertical 90 degree and keep stable.
4. Tapping depth should not exceed 1.5 times the diameter of the tap: For example: diameter of M5x0.8 about 5mm, the depth should not exceed 7.5mm.