01H013 - Walter 13/64 Inch SST Heavy-Duty Stub Drill Bit

Precision Drilling for Tough Materials

The Walter 01H013 13/64" SST Stub Drill is engineered for industrial professionals who demand reliability and precision when working with challenging materials. Unlike standard jobber-length bits, this stub drill (also known as screw machine length) features a shorter flute and overall length. This design characteristic significantly increases the torsional rigidity of the bit, virtually eliminating the flexing that leads to breakage. It is the superior choice for drilling into thin-walled materials, sheet metal, and hard alloys where stability is paramount.

At the tip, the drill boasts a sophisticated 135° split point geometry. This aggressive angle allows the bit to bite into the material immediately upon contact, preventing the "walking" or skating common with standard 118° points. This self-centering feature removes the need for pre-punching, streamlining your workflow and ensuring accurate hole placement every time. Whether you are working with mild steel, non-ferrous metals, or tough stainless steel, the cutting edges remain sharp and effective.

Walter has applied their exclusive Bronze SST surface treatment to this bit. This specialized coating serves a dual purpose: it reduces the coefficient of friction between the tool and the workpiece, and it facilitates better chip evacuation. The result is a cooler drilling process that protects the temper of the bit and extends its service life. For maintenance, repair, and operations (MRO) environments where efficiency and tool longevity are critical, the Walter SST Stub Drill stands out as a high-performance solution.

Key Technical Benefits

• Enhanced Rigidity: Short length minimizes deflection and breakage.
• Self-Centering: 135° split point starts on contact without wandering.
• Heat Management: Bronze SST treatment dissipates heat for longer life.