01M600 - Walter 1-Inch SST+ Cobalt Prentice Drill Bit with 1/2-Inch Shank

Heavy-Duty 1-Inch Drilling Solution

The Walter 01M600 1" SST+ Prentice Drill Bit is a premium cutting tool engineered for industrial environments where precision, speed, and tool longevity are critical. Part of Walter's acclaimed SST+ series, this drill bit is manufactured from a high-performance cobalt blend. This material composition provides exceptional heat resistance and hardness, making it the ideal choice for drilling through tough alloys, including stainless steel, mild steel, and non-ferrous metals. Unlike standard high-speed steel bits that may dull quickly under high thermal loads, the cobalt infusion ensures the cutting edges remain sharp for extended periods, reducing downtime for tool changes.

Designed with versatility in mind, this "Prentice" style bit features a reduced 1/2-inch shank. This smart design element allows operators to utilize a large 1-inch diameter cutter with standard portable power drills and drill presses that have a maximum chuck capacity of 1/2 inch. To address the common issue of large bits spinning inside the chuck under high torque, Walter has machined three distinct flats onto the shank. These flats provide a positive lock with the chuck jaws, ensuring maximum power transmission and preventing damage to both the bit and the drill.

Efficiency is further enhanced by the bit's advanced point geometry. The self-centering tip bites into the material immediately upon contact, effectively eliminating the need for center punching or pilot drilling. This "non-walking" feature is particularly beneficial when drilling on curved surfaces or pipes. Finished with a specialized bronze SST surface treatment, the bit benefits from reduced friction and improved chip evacuation, keeping the tool cooler during operation. Whether used in a magnetic drill or a handheld unit, the Walter 01M600 delivers reliable, heavy-duty performance for large hole fabrication.