Osg 8623038 Extra Length Cobalt Drill Bit Wire 25

Product Description

The OSG 8623038 is a Series 1750 extra length cobalt drill bit designed for demanding drilling applications where standard-length bits fall short. Manufactured from M6K-grade cobalt high-speed steel with a WXL finish, it delivers elevated heat and wear resistance in tough ferrous and exotic materials. The bit measures 0.1495 inches in diameter (Wire Size 25, 3.80 mm) with a 120-degree standard point angle and a fast spiral flute configuration. It is suited for production machining, fabrication shops, and maintenance environments where hole depth or reach exceeds what jobber-length tooling can provide. Licensed machinists and toolroom professionals are the primary installers and users.

This extra length drill bit is intended for use in vertical machining centers, drill presses, and hand-held pneumatic or electric drilling equipment where extended reach into deep bores or recessed features is required. The straight-cylindrical shank seats directly in standard drill chucks without adapters. Applications commonly include drilling through structural steel, alloy steels, stainless steel, and other high-strength materials where cobalt tooling is specified. It is sold individually and is appropriate for both production runs and maintenance-repair operations.

Key Features

• M6K cobalt high-speed steel construction for superior heat and wear resistance in hard materials
• WXL finish reduces friction and extends tool life in ferrous alloys
• Fast spiral flute promotes efficient chip evacuation in deep-hole drilling
• R-Thinned web reduces thrust force and improves center-starting performance
• Tapered web configuration adds rigidity along the flute length
• Right-hand cutting, 2-flute design compatible with standard drill press and CNC setups

Compatibility

Designed as an OSG Series 1750 extra length drill bit for use in standard straight-shank drill chucks on drill presses, milling machines, and CNC machining centers requiring a 0.1495-inch (Wire Size 25) diameter bore.

Installation Notes

Installation and use should be performed by qualified machinists or toolroom personnel. Ensure the machine spindle and chuck are fully stopped and the machine is de-energized before inserting or removing the bit. Secure the straight-cylindrical shank firmly in the chuck to the full recommended grip depth to prevent runout or pullout during cutting. Always apply appropriate cutting fluid for the material being drilled, and do not exceed the recommended feed and speed parameters for cobalt tooling in the workpiece material.