01E178 - Walter SST Quick Shank 29-Piece Drill Bit Set in Plastic Case

Premium 29-Piece Drilling Solution for Industrial Applications

The Walter SST Quick Shank Drill Set (01E178) represents the pinnacle of drilling efficiency and convenience for professional machinists and maintenance personnel. This comprehensive 29-piece set covers the essential range of sizes from 1/16-inch to 1/2-inch in 1/64-inch increments, ensuring you have the precise tool required for any standard tapping or clearance hole application. Housed in a rugged, shock-resistant plastic index box, this set is designed to withstand the harsh conditions of industrial environments while keeping your tools organized and accessible.

At the core of this set is Walter's renowned SST (Super Speed Tip) technology. Each bit is engineered with a premium cobalt-blend High Speed Steel (HSS) matrix that provides exceptional heat resistance and hardness. This material composition allows the bits to maintain their cutting edge significantly longer than standard HSS bits, even when drilling through tough alloys like stainless steel. The 135-degree split point geometry is a critical feature, allowing the bit to self-center immediately upon contact with the workpiece. This eliminates the need for pre-punching and prevents the bit from "walking" across the surface, ensuring precise hole placement every time.

One of the most significant frustrations in drilling—bit slippage—is solved by the Quick Shank design included in this set. For sizes 3/16-inch and larger, the shanks feature longitudinal flats that lock securely into the drill chuck. This positive drive mechanism ensures maximum torque transmission and prevents the bit from spinning inside the jaws, which can damage both the bit and the chuck. Whether you are using a keyed chuck on a drill press or a keyless chuck on a cordless hand drill, the Quick Shank ensures reliable performance under heavy loads.

The flute design of the SST bits is optimized for rapid chip evacuation. By clearing debris efficiently from the hole, friction and heat buildup are minimized, further extending the life of the tool. This set is an indispensable asset for any workshop dealing with a variety of materials, including mild steel, aluminum, and stainless steel.