01K130 - Walter #30 SST Cobalt Double-Ended Drill Bit

High-Performance Double-Ended Drilling Solution

The Walter 01K130 #30 SST Double-End Stub Drill is engineered for industrial environments where efficiency and durability are paramount. Designed with a specialized cobalt blend substrate, this drill bit offers significantly higher heat resistance and wear life compared to standard black oxide or high-speed steel bits. The inclusion of cobalt allows the cutting edges to maintain hardness even at elevated temperatures, making this tool exceptionally capable when drilling through hard materials such as stainless steel and high-tensile alloys.

One of the defining characteristics of the 01K130 is its double-ended stub geometry. By providing two cutting heads on a single shaft, Walter effectively doubles the tool life, reducing inventory costs and downtime associated with tool changes. The stub length is critical for applications involving sheet metal and thin-walled profiles; the shorter flute length greatly increases the torsional rigidity of the bit, virtually eliminating the risk of snapping under pressure—a common failure mode in standard length bits used for these applications.

Precision is ensured through a 135-degree split point design. This self-centering geometry allows the operator to start holes immediately upon contact with the workpiece without the need for a center punch or pilot hole. This feature prevents the bit from "walking" or skating across the surface, ensuring accurate hole placement every time. Whether used for drilling out rivets in the aeronautical industry or fabricating automotive body panels, the Walter SST Double-End Stub Drill delivers unmatched speed and reliability.