Osg 8672800 Solid Carbide Jobber Drill 8mm 140deg

Product Description

The OSG 8672800 is a solid carbide jobber-length drill bit designed for high-performance drilling in ferrous materials. It features an 8.00 mm diameter, a 140-degree R-thinned point for self-centering entry, and an EgiAs coating to reduce friction and extend tool life. The overall length is 91.00 mm with a 53.00 mm flute length, and the 5xD flute-to-diameter ratio provides effective chip evacuation in moderate-depth applications. Right-hand spiral flutes with a tapered web and regular spiral type make this bit suitable for consistent, repeatable results in production and maintenance environments. It is intended for installation and use by machinists, tool-and-die professionals, and industrial maintenance technicians.

This drill bit is rated for use in steel, alloy steel, and cast iron workpieces. It is suited for blind hole drilling, cross hole drilling, general drilling operations, and self-centering applications where point geometry matters. The straight-cylindrical shank with an 8.00 mm diameter fits standard drill chucks and collet holders commonly found in CNC machining centers, drill presses, and manual lathes. No coolant-through capability is present, so external coolant or cutting fluid application is recommended when drilling harder ferrous grades.

Key Features

• Solid carbide construction for rigidity and wear resistance in ferrous materials
• EgiAs coating reduces friction and extends cutting edge life
• 140-degree R-thinned point promotes self-centering and reduces thrust force
• Tapered web with web thinning improves chip flow in blind and cross-hole applications
• 5xD flute-to-diameter ratio supports moderate-depth drilling without excessive chip packing
• Straight-cylindrical shank fits standard chucks and collet systems

Compatibility

Designed as an OEM-style replacement or direct-use drill for applications requiring an 8.00 mm solid carbide jobber drill in the OSG Series 6310 line, suited for steel, alloy steel, and cast iron workpieces.

Installation Notes

This bit should be installed by a qualified machinist or tooling technician familiar with carbide tooling handling. Secure the straight-cylindrical shank firmly in a compatible chuck or collet before operation and verify runout is within acceptable limits, as carbide is brittle and sensitive to lateral loading. Power down the machine completely before changing tooling. Apply external cutting fluid when drilling harder ferrous alloys to manage heat at the cutting edge.