- Fractional
- 21/64 in Drill Size
- Black Oxide Material
- Jobber Length Drill Style
description
- Milwaukee® THUNDERBOLT® black oxide jobber length drill bits are designed for extreme durability and long life. The THUNDERBOLT® web features a thicker core than a standard drill bit, which provides ultimate strength and protects against side-load breakage. A specially designed parabolic flute form clears chips and debris fast to keep the bit cool. A precision start, 135 split point tip starts on contact to keep the bit from walking for fast accurate holes. Excellent for drilling on curved surfaces, requires less effort to drill and is highly recommended for use with portable drills.
features
- Extreme durability: thicker web provides greater strength and longer life
- Fast, accurate drilling: 135° split point tip starts on contact to prevent walking, while the parabolic flute clears chips fast
- Reduced slipping: 3-flat Secure-Grip™ shank holds the bit firmly in the drill chuck
- Versatile: reduced shank diameter for use in 3/8 in. chucks
- Corrosion resistant: black oxide coating provides lubricity and resists corrosion of the bit
| Series | Milwaukee® Thunderbolt® Black Oxide |
| Drill Point Angle | 135⁰ |
| Finish | Black Oxide |
| Direction of Rotation | Right Hand |
| Drill Point Design | Split |
| Cutting Depth | 4 in |
| Point Angle | 135° |
| Flute Length | 4 in |
| Material | Black Oxide |
| Bit Dia. | 0.328 in |
| Drill Style | Jobber Length |
| Drill Bit Length Type | Jobber |
| Bit Material | Black Oxide |
| No. of Pieces | 1 |
| Single/Double End | Single |
| Shank Dia. | 0.25 in |
| Quick Change Impact Driver Bit | No |
| Drilling Depth | 4 in |
| Size Type | Fractional |
| Type | Single End |
| Drill Diameter | 0.328 in |
| Drill Size | 21/64 in |
| Chuck Size Required [Min] | 1/4 in |
| Cut Direction | Right Hand |
| Shank Diameter | 1/4 in |
| Recommended Safety Equipment | Safety Glasses |
| Bit Type | Twist |
| Length | 6 in |
| Style | Split |
| Weight | 0.1 LB |
| EAN or UPC | 45242166985 |

