01M562 - Walter SST+ 31/32" Cobalt Reduced Shank Drill Bit

Heavy-Duty Precision Drilling with Walter SST+ Technology

The Walter 31/32" SST+ Prentice Drill (01M562) represents the upper echelon of industrial drilling solutions, specifically engineered for heavy-duty applications where standard high-speed steel bits fail. Part of Walter's renowned SST+ line, this drill bit is manufactured from a proprietary cobalt blend. This material composition provides exceptional hot hardness, allowing the bit to maintain its cutting edge even under the extreme temperatures generated when drilling through tough alloys like stainless steel and structural steel.

One of the standout features of the 01M562 is its "Prentice" style design, also known as a Silver & Deming bit. While the cutting diameter is a substantial 31/32 of an inch, the shank is reduced to 1/2 inch. This design allows operators to utilize large-diameter bits in standard portable drills, drill presses, and magnetic base drills that have a 1/2-inch chuck capacity. To address the common issue of round shanks spinning under high torque, Walter has machined three flats onto the shank. This ensures a positive lock within the chuck jaws, guaranteeing maximum power transmission and preventing damage to both the bit and the tool.

Efficiency is at the core of the SST+ geometry. The bit features an exclusive self-centering point that bites into the material immediately upon contact. This eliminates the time-consuming step of center punching and prevents the bit from "walking" or wandering, which is particularly beneficial when drilling into curved surfaces like pipes or tubing. The special bronze SST surface treatment further enhances performance by reducing friction and heat buildup, facilitating smoother chip flow and faster drilling speeds. For professionals requiring reliability and precision in MRO and fabrication environments, the Walter 01M562 is the definitive choice.