01D525 - Walter SST+ 2.50mm Cobalt Drill Bit for Stainless Steel

Premium Performance for Tough Alloys

The Walter 01D525 SST+ 2.50mm Drill Bit represents the pinnacle of drilling technology for industrial maintenance and fabrication. Designed specifically to overcome the challenges of drilling hard, high-tensile materials, this bit features a proprietary cobalt blend that significantly enhances red hardness. This allows the bit to maintain its cutting edge even under the extreme temperatures generated when drilling stainless steel and other tough alloys. Unlike standard high-speed steel bits that dull quickly in these applications, the SST+ series delivers consistent, aggressive performance hole after hole.

Advanced Geometry for Efficiency

Efficiency in drilling is defined by chip removal and friction management. The SST+ incorporates a "High Flow" flute design that rapidly evacuates swarf from the hole, preventing heat buildup and clogging that can lead to bit failure. Complementing this is a back-tapered body design, which slightly reduces the diameter of the bit behind the cutting head. This crucial feature minimizes contact with the sidewalls of the hole, drastically reducing friction and eliminating the risk of the bit binding or snapping during deep drilling operations.

Precision and Longevity

Accuracy is paramount in professional settings. The 01D525 is equipped with a self-centering split point that bites into the material immediately upon contact. This eliminates the need for a center punch and prevents "walking," even when drilling on curved surfaces like pipes or tubing. The exclusive Bronze SST surface treatment further enhances longevity by acting as a solid lubricant, smoothing the drilling process and extending the tool's life. For professionals requiring reliable, high-speed drilling in mixed materials, the Walter SST+ is the definitive choice.