01A507 - Walter SST+ 7/64 Inch Cobalt Drill Bit for Stainless Steel

Industrial-Grade Precision with Walter SST+ Technology

The Walter 01A507 7/64" SST+ Drill Bit represents the pinnacle of drilling technology for industrial maintenance and fabrication environments. Engineered by Walter Surface Technologies, this bit is designed to overcome the common challenges associated with drilling hard, tensile materials. At its core, the SST+ features a proprietary cobalt blend that significantly enhances the bit's red hardness. This allows the tool to maintain its cutting edge even under the extreme temperatures generated when drilling through work-hardened stainless steel or heavy-gauge mild steel.

One of the standout features of this internal SKU 01A507 is the state-of-the-art "High Flow" flute design. In high-production settings, chip packing is a primary cause of heat buildup and premature tool failure. The SST+ geometry optimizes the evacuation of swarf and chips, keeping the cutting interface cooler and allowing for higher feed rates without compromising the integrity of the hole. The heavy-duty, fully ground body ensures that the bit remains concentric, delivering precise, round holes every time, which is critical for tapping or riveting operations that follow.

Furthermore, the bit undergoes a specialized bronze SST surface treatment. This treatment is not merely cosmetic; it acts as a lubricant to reduce friction between the bit and the workpiece. This reduction in friction translates to less torque requirement from the power tool and smoother drilling action. Whether utilized in a stationary drill press for repetitive manufacturing tasks or a portable drill for on-site repairs, the Walter SST+ 7/64" bit delivers consistent, reliable performance that professionals demand.

The geometry of the tip is specifically designed to prevent walking, a common issue when starting holes on curved surfaces such as pipes or tubing. This self-centering capability eliminates the need for center punching in many applications, streamlining the workflow and reducing cycle times. For MRO professionals seeking a drill bit that balances speed, durability, and precision, the Walter SST+ is the superior choice.