01H125 - Walter SST+ 25/64" Stub Drill Bit - 135° Split Point

High-Performance Rigidity for Precision Drilling

The Walter 01H125 25/64" SST+ Stub Drill is an industrial-grade cutting tool engineered for professionals who demand reliability and precision in metalworking. Distinguished by its short flute and overall length, this "stub" or screw machine length drill bit offers exceptional rigidity compared to standard jobber length bits. This increased stiffness virtually eliminates the flexing and bowing that often lead to premature breakage, making it the ideal choice for drilling through tough alloys and thin-walled materials where stability is paramount.

Manufactured from premium High Speed Steel (HSS) and enhanced with Walter's proprietary bronze SST surface treatment, this bit is designed to withstand high thermal loads. The bronze coating not only increases surface hardness but also reduces friction, facilitating smoother chip evacuation and preventing galling in gummy materials like aluminum and stainless steel. The geometry of the bit features a 135° split point, a critical specification that ensures the bit centers itself immediately upon contact with the workpiece. This self-centering action eliminates the need for pre-punching and prevents the bit from "walking" across the surface, ensuring accurate hole placement every time.

This drill bit is particularly effective in MRO environments and production fabrication where sheet metal and structural steel are common. Its compact size allows operators to maneuver into tight spaces inside machinery or vehicle frames that standard drills cannot reach. Whether used in a stationary drill press or a portable hand drill, the Walter SST+ Stub Drill delivers consistent performance, producing clean, burr-free holes with superior efficiency.