Walter-titex 5057068 Screw Machine Drill Bit 0.147 in

Product Description

The WALTER-TITEX 5057068 is a screw machine length drill bit designed for high-performance drilling in demanding materials. Built from cobalt vanadium high speed steel with a bright, uncoated finish, it measures 0.147 inches in diameter and carries a 130-degree split-point geometry. The parabolic flute design promotes efficient chip evacuation, reducing heat buildup during extended drilling cycles. At 2-1/16 inches overall length with a 25/32-inch flute length, this bit fits standard drill chucks and screw machine applications. It is installed and used by machinists, maintenance technicians, and trade professionals working with tight-tolerance bores.

This drill bit is suited for right-hand cutting in a wide range of workpiece materials including steel, stainless steel, cast iron, hard materials, and non-ferrous metals. The screw machine length format makes it well-suited for short, rigid setups in drill presses, CNC machining centers, and turret lathes where stub-length rigidity reduces deflection. The 3xD flute-to-diameter ratio supports drilling depths up to 0.600 inches, and the tapered web configuration with web thinning aids in starting accuracy and thrust reduction on hard materials.

Key Features

• Cobalt vanadium high speed steel construction for heat resistance in hard and abrasive materials
• 130-degree split point with web thinning for self-centering starts and reduced feed pressure
• Parabolic flute design for efficient chip evacuation in deep or gummy cuts
• Screw machine length provides added rigidity and reduced deflection versus jobber-length bits
• Straight-cylindrical shank fits standard drill chucks without adapters
• Meets DIN, ISO, and BS standards for dimensional consistency

Compatibility

Designed as a screw machine length drill bit for use in drill presses, CNC turret lathes, and screw machines requiring a No. 26 wire gauge or 0.147-inch diameter bore in steel, stainless steel, cast iron, hard materials, and non-ferrous metals.

Installation Notes

Installation and use should be performed by qualified machinists or tool and die technicians familiar with cutting tool selection and machine setup. Ensure the machine spindle and chuck are fully stopped and de-energized before inserting or removing the bit. Verify chuck collet or drill chuck clearance is sized for a straight-cylindrical shank. Applying appropriate cutting fluid or coolant for the workpiece material extends tool life, even though this bit does not support coolant-through delivery.