01W021 - Walter Titanium Coated Step Drill 3/16-1/2 Inch

Precision Multi-Step Drilling for Industrial Applications

The Walter 01W021 Multi-Step Drill Bit is a premium cutting tool engineered for professionals who demand efficiency and precision when working with thin gauge materials. Designed to cover a drilling range from 3/16-inch to 1/2-inch, this single bit eliminates the need to carry multiple standard twist drills, streamlining operations in electrical, HVAC, and sheet metal fabrication environments. Its specialized geometry is optimized for materials up to 1/8-inch thick, making it an indispensable asset for panel building and chassis work.

Advanced Titanium Coating

Durability is a core feature of the 01W021. The bit is treated with a special titanium coating that significantly increases surface hardness and reduces friction. This coating acts as a thermal barrier, dissipating heat more effectively than standard high-speed steel. This is particularly critical when drilling tough materials like stainless steel, where heat buildup is the primary cause of premature tool failure. The result is a drill bit that maintains its cutting edge longer, providing a superior return on investment through extended service life.

Chatter-Free Performance

Walter has designed this step drill with two wide flutes that serve a dual purpose. First, they facilitate rapid chip evacuation, preventing the build-up of debris that can mar the workpiece or overheat the bit. Second, the flute geometry stabilizes the drill during rotation, virtually eliminating chatter. This ensures that every hole is perfectly round and burr-free, reducing the need for secondary deburring operations. The self-centering point further enhances precision by preventing the bit from "walking" across the surface, allowing for accurate hole placement without the need for a center punch.

Versatile Application

Whether enlarging existing holes or creating new ones, the Walter Multi-Step Drill excels in performance. It is specifically rated for use on sheet metal, stainless steel, and non-ferrous metals. The stepped design allows for gradual enlargement of holes, which puts less stress on the material compared to large twist drills, preventing deformation of thin sheets.