Specifications
Dimensions
- Drill Bit Size#21
- Flute Length2-5/16 in
- Overall Length3-1/2 in
- Shank Diameter0.159 in
Details
- Coolant DeliveryExternal
- Cutting DirectionRight Hand Cut
- Double MarginNo
- Finish CoatingOxide
- MaterialHigh Speed Steel
- Parabolic FlutesNo
- Point Angle135 °
- Point TypeSplit Point
- Series150ASP
- Shank TypePlain Round
- SpecificationNAS 907B
- Spiral CutRight Hand Spiral/Right Hand Cut
- Spiral DirectionRight Hand Spiral
Overview
Mfr description
45691 150 A-SP #21 HD JBBR & SCRW MCHN
- Heavy-duty construction for drilling in tougher materials
- Manufactured from premium high-speed steel
- 135° P3 split point is self-centering for reduced thrust and easier penetration
- Black oxide surface finish increases wear resistance and adds lubricity to improve chip flow
- Manufactured to NAS 907 type B aerospace specifications