Walter-titex 5337140 Screw Machine Drill Bit 1/8 in Cobalt

Product Description

The WALTER-TITEX 5337140 is a screw machine length cobalt drill bit designed for high-performance drilling in demanding materials. Built to DIN 1897 standards and manufactured from M35 cobalt steel, this bit delivers heat and wear resistance that standard high-speed steel cannot match. The 130-degree conical point with web thinning reduces thrust and promotes accurate entry without center-punching on many applications. At 1.9291 inches overall length with a 0.7087-inch parabolic flute, this stub-length geometry increases rigidity and minimizes deflection in short-reach drilling operations. Licensed trades and machining professionals reaching for a go-to bit in stainless, cast iron, and non-ferrous work will find this a reliable daily driver.

This bit is suited for screw machine and production drilling environments where short overall length improves rigidity on drill presses, CNC machining centers, and manual machines. Primary workpiece materials include steel, stainless steel, cast iron, and non-ferrous metals. The parabolic flute profile supports efficient chip evacuation in both through and blind hole applications. The straight-cylindrical shank fits standard 1/8-inch collets and chucks across a wide range of machine tool setups. Maximum drilling depth is 0.4724 inches.

Key Features

• M35 cobalt construction for elevated heat resistance when drilling stainless steel and hard alloys
• 130-degree conical point with web thinning reduces entry thrust and improves self-centering
• Parabolic flute geometry promotes fast chip evacuation and reduces clogging in deep cuts
• Screw machine (stub) length increases rigidity and reduces deflection versus jobber-length bits
• Right-hand cut with straight-cylindrical shank for compatibility with standard collets and chucks
• Conforms to DIN 1897 and ISO standards with h8 diameter tolerance for consistent sizing

Compatibility

Designed as an OEM-style replacement and production drill bit for use in any machine tool or hand drill accepting a 1/8-inch straight-cylindrical shank, including drill presses, CNC machining centers, and portable power drills. Series A1149XPL.

Installation Notes

Installation and use of this drill bit should be performed by a qualified machinist or trade professional familiar with proper speeds and feeds for cobalt tooling. Secure the shank fully in the chuck or collet before operation and verify runout is within acceptable limits. Always use appropriate cutting fluid or coolant when drilling stainless steel or hard ferrous materials to maximize tool life. Disconnect or de-energize the machine spindle before changing tooling.