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When you need to drill big holes but only have a standard drill on hand, the Walter 1-5/16" SST+ Prentice Drill Bit is the solution. Designed for professional welders and fabricators, this bit features a reduced shank that fits securely into any standard 1/2" drill chuck. It is built to tackle the toughest materials in the shop, including stainless steel and heavy structural steel, without burning out or dulling prematurely.
Time is money on the fabrication floor. That's why Walter engineered this bit with a specialized self-centering point that bites into the metal immediately upon contact. You can say goodbye to the extra step of drilling pilot holes or using a center punch. Additionally, the shank features three flat sides (Prentice style) that lock firmly into your drill's jaws. This prevents the annoying and damaging spinning that often happens with round-shank bits under high torque, ensuring you get full power transfer to the cutting edge.
Standard drill bits often fail when pushed to these diameters in hard metals. The Walter 01M617 uses a cobalt-blended high-speed steel formula that resists the intense heat generated during large-diameter drilling. A bronze surface treatment further enhances performance by reducing friction and helping chips slide out of the hole easily. This means you can drill more holes per bit, reducing your tooling costs and downtime.
| Additional Information |
|---|
| Brand:Walter Surface Technologies |
| Diameter:1-5/16 in |
| Item:Drill Bit |
| Shank Type:Prentice (1/2" Reduced with 3 Flats) |
| Material:Cobalt Blend High-Speed Steel (HSS) |
| Surface Treatment:Bronze SST |
| Point Type:Self-Centering |
| Application Material:Stainless Steel, Mild Steel, Non-Ferrous Metal |
| Packaging Description:1 per each |
