01H113 - Walter 13/64 Hex Sst Stub Drill

Walter 01H113 13/64" Hex SST Stub Drill: Technical Overview

The Walter 13/64" Hex SST Stub Drill is engineered for the specific demands of sheet metal fabrication and maintenance operations involving thin-gauge ferrous and non-ferrous metals. Identified by SKU 01H113, this cutting tool utilizes a heavy-duty High-Speed Steel (HSS) substrate enhanced with a bronze surface treatment. This "SST" formulation is designed to withstand high torque and heat, making it suitable for drilling stainless steel, mild steel, and aluminum without rapid dulling. The stub length geometry (often referred to as screw machine length) provides a shorter flute and overall length, which maximizes torsional strength and minimizes deflection during operation.

Technically, the 135° split point geometry is a critical specification for this bit. It reduces the thrust load required to penetrate the material, allowing for faster feed rates with less operator fatigue. This geometry effectively breaks up chips at the center of the drill, enabling the bit to penetrate hard surfaces without "walking." This makes the 01H113 an excellent choice for drilling out spot welds or creating rivet holes where position accuracy is paramount. The reduced length also allows for access into tight clearance areas inside machinery or vehicle frames.

The integration of a quick-change Hex shank addresses the modern need for efficiency. It allows the operator to swap bits rapidly in impact drivers or quick-release chucks, ensuring zero spin-out under heavy loads. The bronze oxide finish not only identifies the tool but serves as a lubricant carrier and heat shield, preventing the galling of material on the cutting lips. For welders and fabricators looking for a robust, break-resistant drilling solution that produces accurate, burr-free holes in sheet metal, the Walter SST Stub Drill is the industry standard.

Applications and Materials:

• Sheet Metal: Ideal for drilling rivet holes and fasteners in thin gauge panels.
• Stainless Steel: SST heat treatment handles the work-hardening properties of stainless.
• Curved Surfaces: Split point bites instantly on pipe and tubing.
• Confined Spaces: Short overall length fits where standard drills cannot.