Osg 17506511 Extra Length Cobalt Drill Bit 3/16 in

Product Description

The OSG 17506511 is an extra-length cobalt drill bit designed for demanding drilling applications where standard-length bits fall short. Built from M6K-grade high-performance cobalt steel and finished with OSG WXL coating, this bit delivers extended wear resistance and heat tolerance in tough ferrous and stainless materials. The 3/16-inch diameter bit runs a 120-degree point angle with a standard point type and R-thinned web for cleaner entry and reduced thrust. A fast spiral flute geometry promotes aggressive chip evacuation, and the tapered web configuration adds rigidity through the cut. Machinists and maintenance technicians working with deep-hole or through-hole requirements in hardened or alloyed steels will find this bit sized and coated appropriately for the task.

This bit is suited for use in CNC machining centers, drill presses, and hand-operated power drills where extra reach is required beyond standard jobber length. The straight-cylindrical shank at 3/16 inch diameter fits standard drill chucks without reduction or adapters. It is appropriate for production environments, toolroom work, and MRO applications involving high-strength steels, stainless alloys, and similar difficult-to-machine materials. Right-hand cutting direction is standard for conventional drilling setups. This is a single-piece per-package item with no coolant-through capability, making it best suited for air-blast or flood-coolant surface applications.

Key Features

• M6K cobalt steel construction for high heat resistance in tough alloys
• WXL coating extends cutting edge life and reduces friction
• 120-degree point angle with R-thinned web reduces entry thrust and walking
• Fast spiral flute geometry promotes efficient chip evacuation in deep holes
• Extra-length geometry at 145 mm overall length reaches beyond standard jobber reach
• Straight-cylindrical shank fits standard 3/16-inch drill chucks directly

Compatibility

Designed as an extra-length replacement or upgrade drill bit for use in standard 3/16-inch drill chucks on CNC machining centers, drill presses, and handheld power tools. No coolant-through compatibility.

Installation Notes

Install in a properly sized 3/16-inch drill chuck and confirm secure seating before operation. Ensure the workpiece is firmly fixtured to prevent movement during drilling. Follow applicable shop safety standards and machine tool manufacturer guidelines for speed and feed settings when working with cobalt tooling in high-strength materials. Inspect the cutting edges before each use and replace if chipping or wear is visible to avoid workpiece damage or breakage.