- Corrosion resistant – black oxide coating provides lubricity and resists corrosion of the bit
- Reduced slipping – 3-flat Secure-Gripâ„¢ shank holds the bit firmly in the drill chuck
- Versatile – reduced shank diameter for use in 3/8 in. chucks
- Fast, accurate drilling – 135-degree split point tip starts on contact to prevent walking, while the parabolic flute clears chips fast
- Extreme durability – thicker web provides greater strength and longer life
| Surface Coating | Black Oxide |
|---|---|
| Recommended Safety Equipment | Safety Glasses |
| Bit Sizes | 45123 |
| Pieces | 6 |
| Bit Type | Twist |
| Case Included | No |
| Drill Bit Length Type | Jobber |
| Package Contents | (1) 7/16″ Thunderbolt Black Oxide |
| Quick Change Impact Driver Bit | No |
| Bit Material | Black Oxide |
| Single / Double Ended | Single |
| Drill Point Design | Split |
| OPT SKU | 48-89-2844 |
|---|---|
| MPN | 48-89-2844 |
| UPC/GTIN | 045242184729 |
| Product Type | Metal Drilling & General Purpose |
| Google Category | Hardware > Tool Accessories > Drill & Screwdriver Accessories > Drill & Screwdriver Bits |
| Diameter | 7/16″ |
| Shipping Weight | 1.00 |







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