Precision Twist Drill 5998573 Screw Machine Drill Bit

Product Description

The PRECISION TWIST DRILL 5998573 is a screw machine length drill bit designed for high-performance drilling in tight-tolerance applications. Manufactured from high speed steel with a coated finish, it offers a 0.104 inch (Wire Size 37) diameter and features a 135-degree split point for fast, accurate starts without center-punching. The web-thinned, tapered web construction reduces thrust and improves chip evacuation. This bit is built for heavy-duty production environments where consistent hole quality and tool life are critical. Licensed trade professionals and machining specialists are the primary users of this series.

The R41C series screw machine length drill bit is suited for drilling titanium and other demanding workpiece materials where a shorter flute length provides rigidity and reduces deflection. The 1-13/16 inch overall length and 13/16 inch flute length make it well matched to screw machine, turret lathe, and CNC drilling operations. The 2.5xD flute-to-diameter ratio supports efficient chip removal in shallow-hole applications. It cuts right-hand and accepts no coolant-through delivery, relying on external coolant when required.

Key Features

• 0.104 inch diameter, Wire Size 37, within the 0.1000 to 0.1500 inch range of the R41C series
• 135-degree split point with web thinning for reduced thrust and self-centering entry
• High speed steel construction with coated finish for extended tool life
• Screw machine length for added rigidity and minimal deflection in short-hole drilling
• Regular spiral, spiral flute geometry with 2.5xD flute-to-diameter ratio
• Meets ANSI and NAS 907 standards for heavy-duty drill bit performance

Compatibility

Designed as an OEM-style replacement and production-grade drill bit for screw machine, turret lathe, and CNC drilling setups requiring a Wire Size 37 (0.104 inch) straight-shank bit. Primary workpiece material compatibility is listed as titanium; the R41C series is rated for high-performance applications in that category.

Installation Notes

Installation and use should be performed by a qualified machinist or tool-and-die professional familiar with cutting tool setup and machine tool operation. Secure the straight-cylindrical shank fully in the chuck or collet before operation and verify runout within acceptable limits. Power down and de-energize the machine before changing or inspecting the bit. Do not exceed the rated speed and feed parameters for the workpiece material being drilled.