01R236 - Walter SST+ 9/16" Drill Bit - 3/8" Reduced Shank

Precision Drilling for Hard Alloys

The Walter 01R236 9/16" SST+ Drill Bit is a high-performance cutting tool engineered for industrial environments where precision and durability are paramount. Part of Walter's renowned SST+ series, this drill bit is formulated from a special High Speed Steel (HSS) blend containing cobalt, designed specifically to withstand the high temperatures generated when drilling through tough materials like stainless steel and heavy-gauge mild steel. The bit features a 9/16-inch cutting diameter but is machined with a 3/8-inch reduced shank, allowing it to be utilized in drill presses and portable drills that have a maximum chuck capacity of 3/8 inch.

One of the standout features of this bit is its 135° split point geometry. Unlike standard 118° points, the 135° split point is self-centering, which effectively eliminates "walking" or wandering upon initial contact with the workpiece. This precision allows operators to drill accurate holes without the mandatory step of center punching, saving time and improving workflow efficiency. The robust web construction provides added structural strength, reducing the risk of breakage under the torque required to drill larger diameter holes in hard metals.

This drill bit is an essential tool for maintenance, repair, and operations (MRO) professionals who require reliable tooling that can handle a variety of ferrous and non-ferrous metals. Whether you are drilling into structural steel, aluminum plates, or stainless steel piping, the Walter SST+ reduced shank bit delivers consistent performance, clean holes, and a long service life, making it a cost-effective choice for demanding fabrication shops.