Osg 61520 Screw Machine Drill Bit 2mm Hss Series 1100

Product Description

The OSG 61520 is a screw machine length (stub length) drill bit designed for high-performance drilling in a wide range of metalworking applications. It measures 2.00 mm (0.0787 inches) in diameter with an overall length of 44.00 mm and a flute length of 12.00 mm. The bit is manufactured from high speed steel with a coated finish and features a 130-degree faceted drill point with web thinning for reduced thrust and easier penetration. A straight-cylindrical shank with a 3.00 mm diameter provides secure chuck retention. This bit is suited for use in CNC machining centers, drill presses, and hand-held drilling operations by machinists and metalworking professionals.

The OSG 61520 Series 1100 stub drill is intended for short-hole drilling in production and job-shop environments where rigidity and precision are required. Its screw machine length keeps the bit stiff and accurate in confined spaces or when working close to fixtures. The right-hand spiral flute with a regular helix and tapered web configuration supports efficient chip evacuation. Primary workpiece materials include steel, stainless steel, aluminum, aluminum alloy, and aluminum silicate, making it a versatile choice across common manufacturing applications.

Key Features

• 2.00 mm diameter with a tight tolerance of +0 to -0.014 mm for consistent hole sizing
• 130-degree faceted point with web thinning reduces entry force and improves centering
• High speed steel construction with coated finish for extended wear resistance
• Screw machine (stub) length at 44.00 mm overall provides maximum rigidity
• 2-flute right-hand spiral design promotes efficient chip evacuation
• Straight-cylindrical shank (3.00 mm) fits standard drill chucks without adapters

Compatibility

Designed for drilling steel, stainless steel, aluminum, aluminum alloy, and aluminum silicate workpieces. Fits any standard drill chuck or collet accepting a 3.00 mm straight shank.

Installation Notes

Installation and operation should be performed by qualified machinists familiar with rotating cutting tools and machine tool safety. Secure the shank fully in the chuck or collet before operation and verify runout is within acceptable limits. Use appropriate cutting fluid or coolant for the workpiece material to maximize tool life, noting this bit does not support through-coolant delivery. Follow all machine guarding and PPE requirements per shop safety standards.