Osg 61522 Screw Machine Drill Bit 0.0866 in Hss

Product Description

The OSG 61522 is a screw machine length drill bit designed for high-performance metal drilling in tight-clearance applications. Built from high speed steel with a coated finish, it features a 130-degree faceted point angle and a web-thinned, tapered web configuration that reduces thrust and improves chip evacuation. The bit measures 2.20 mm (0.0866 inches) in diameter with an overall length of 45.00 mm (approximately 1.77 inches) and a straight-cylindrical shank diameter of 3.00 mm (approximately 0.118 inches). It is installed by machinists, tool and die technicians, and precision fabricators working in production or job shop environments.

The OSG 61522 is suited for drilling steel, stainless steel, aluminum, aluminum alloy, and aluminum silicate workpieces. Its screw machine length profile — shorter than jobber length — provides added rigidity and reduced deflection in CNC machining centers, drill presses, and manual screw machine setups. The 5xD flute-to-diameter ratio and regular spiral flute geometry support consistent chip clearing across these materials. This bit is a practical choice for production drilling where hole location accuracy and tool life are priorities.

Key Features

• 130-degree faceted point angle reduces walking and improves entry on hard materials
• Web-thinned tapered web lowers cutting thrust and extends tool life
• High speed steel construction with coated finish for wear resistance
• Screw machine length provides rigidity and reduced deflection versus jobber length bits
• Right-hand cut with 2-flute spiral geometry for efficient chip evacuation
• Straight-cylindrical shank compatible with standard drill chucks and collets

Compatibility

Designed as an OEM-style replacement or direct-use screw machine length drill bit for standard drill chucks and collet systems accepting a 3.00 mm straight-cylindrical shank.

Installation Notes

Installation is performed by machinists or fabricators in machine shop environments. Secure the shank fully in the chuck or collet before operation and verify runout before drilling. Power down and de-energize the machine before bit changes. Follow applicable machine tool safety procedures and manufacturer feed-and-speed recommendations for the workpiece material.