The Walter SST+ Jobber Drill Bit (SKU: 01B527) represents the pinnacle of drilling technology for industrial maintenance, repair, and fabrication. Sized as Wire Gauge #27 (0.1440 inches), this tool is meticulously crafted from a premium cobalt blend High-Speed Steel (HSS). This material composition provides superior hot hardness, allowing the bit to maintain its cutting edge even under the extreme thermal loads generated when drilling tough materials like stainless steel and other high-tensile alloys.<\/p>\n
Technically engineered for efficiency, the SST+ series features an exclusive “High Flow” flute design. This geometry significantly improves chip evacuation rates, preventing heat buildup and clogging that often lead to premature tool failure. The drill body is back-tapered, a critical feature that reduces friction along the side of the hole, thereby minimizing the risk of binding during deep drilling operations. The surface is finished with a special bronze SST treatment, which acts as a solid lubricant to further reduce heat generation and extend the service life of the tool.<\/p>\n
The tip geometry is equally advanced, boasting a 135\u00b0 split point, referred to by Walter as the “Speed Tip.” This self-centering design eliminates the need for center punching or pilot drilling, as it bites into the material immediately upon contact without “walking” across the surface. This feature is particularly advantageous when working on curved surfaces or round stock. Suitable for use in both stationary drill presses and portable hand drills, the Walter 01B527 delivers consistent, precise holes with minimal burr formation.<\/p>\n