01K120 - Walter SST+ #20 Cobalt Double-Ended Stub Drill Bit

High-Performance Drilling for Sheet Metal and Rivets

The Walter 01K120 SST+ Double-Ended Stub Drill Bit (Size #20) is an industrial-grade cutting tool designed to deliver exceptional durability and precision in demanding fabrication environments. Engineered by Walter Surface Technologies, this drill bit features a specialized cobalt blend high-speed steel composition. This material choice significantly enhances heat resistance and wear life compared to standard black oxide bits, making it the preferred choice for drilling through tough alloys, stainless steel, and mild steel sheet metal.

One of the standout features of this product is its double-ended design. By incorporating cutting geometries on both ends of the bit, users effectively get two tools in one. When one side dulls, simply flip the bit in the chuck to continue working, reducing downtime and consumable costs. The stub length profile adds critical rigidity, virtually eliminating the flexing and breakage often associated with jobber-length bits when applying pressure on thin gauge materials.

The 135° split point geometry is a crucial addition for precision work. It allows the bit to self-center immediately upon contact with the material, preventing the "walking" or skating effect that can damage finished surfaces. This makes the 01K120 particularly effective for drilling rivet holes in automotive bodywork, aeronautical panels, and general HVAC fabrication. Whether you are a professional fabricator or a maintenance technician, the Walter SST+ double-ended drill provides the reliability needed for high-volume drilling tasks.

Key Applications

• Drilling rivet holes in sheet metal
• Automotive body repair and fabrication
• Aerospace maintenance and panel work
• General drilling in confined spaces where stub length is beneficial