01J025 - Walter SST+ #25 Cobalt Stub Drill Bit - 135° Split Point

Heavy-Duty Drilling Performance with Walter SST+ Stub Drills

The Walter 01J025 #25 SST+ Stub Drill Bit is engineered for the most demanding industrial environments. When precision and durability are non-negotiable, this cobalt-blended drill bit delivers superior results. Designed specifically for drilling through tough materials such as stainless steel, mild steel, and non-ferrous metals, the SST+ series stands out as a top-tier choice for maintenance, repair, and fabrication professionals.

One of the primary challenges in drilling sheet metal and hard alloys is bit breakage. The Walter SST+ addresses this with its stub length design. By shortening the overall length and flute length, the bit maintains maximum rigidity. This structural integrity allows operators to apply the necessary feed pressure without the bit flexing or snapping, a common issue with jobber-length bits in portable drilling applications. The increased rigidity also contributes to more accurate hole sizing and roundness.

Efficiency is key in any workshop. The 135° split point geometry of the 01J025 eliminates the need for center punching. The bit self-centers immediately upon contact, preventing "walking" or skating across the workpiece surface. This feature not only saves time but also protects the finish of your materials. Combined with Walter's exclusive bronze SST surface treatment, which facilitates chip evacuation and reduces heat friction, this drill bit ensures a longer service life and cleaner cuts every time.

Key Industrial Benefits

• High Heat Resistance: Cobalt blend withstands the high temperatures of drilling stainless steel.
• Enhanced Rigidity: Short flute design minimizes deflection and breakage.
• Precision Starts: Self-centering point allows for accurate drilling without pilot holes.