01B522 - Walter SST+ Cobalt Jobber Drill Bit #22 (0.1570")

High-Performance Drilling for Industrial Applications

The Walter 01B522 SST+ Jobber Drill Bit (Size #22) is engineered to meet the rigorous demands of industrial maintenance and fabrication. Manufactured with a premium cobalt blend, this drill bit is specifically designed to withstand the high thermal stresses generated when drilling through hard ferrous alloys, including stainless steel. Unlike standard high-speed steel bits that dull quickly under heat, the SST+ maintains its cutting edge integrity, ensuring consistent performance over a significantly longer service life.

A key feature of this tool is the exclusive "Speed Tip" design. This self-centering geometry allows for immediate engagement with the workpiece, effectively eliminating "walking" or skidding, even when drilling on curved surfaces such as pipes or round stock. This precision reduces the need for pre-drilling center punches, streamlining the workflow in high-volume operations. Furthermore, the bit features a specialized bronze SST surface treatment that acts as a lubricant, reducing friction and preventing chip adhesion.

The "High Flow" flute geometry is another critical innovation, optimized to evacuate chips rapidly from the hole. This prevents clogging and heat buildup, which are common causes of premature tool failure. The back-tapered body design further minimizes contact with the sidewalls, reducing torque requirements and machine stress. Whether used in stationary drill presses or portable power tools, the Walter SST+ #22 drill bit delivers round, accurate holes with exceptional efficiency.