Osg 300-1260 Chucking Reamer 3.2mm Solid Carbide

Product Description

The OSG 300-1260 is a solid carbide chucking reamer designed for precision hole finishing in general machining applications. With a 3.2 mm (0.1260 inch) reamer diameter and a bright, uncoated finish, this tool delivers consistent bore sizing across a wide range of workpiece materials. The four-flute, straight-flute geometry provides smooth cutting action and accurate diameter control. It measures 57 mm in overall length with a 16 mm flute length, and features a straight cylindrical shank for secure chuck mounting. The right-hand cutting direction and tight diameter tolerance of plus 0.0001 to plus 0.0004 inches make it suitable for production and maintenance machining environments where hole quality and repeatability are critical.

This reamer is intended for use in machine tool setups where a chucking reamer is mounted in a drill press, milling machine, or CNC machining center. It is sized within the 3.00 mm to 4.00 mm diameter range and is well suited for finish-reaming drilled or bored holes to close tolerances in metal components. Machinists and toolroom technicians in manufacturing, job shop, and MRO environments are the primary users.

Key Features

• Solid carbide construction provides rigidity and wear resistance for extended tool life
• 3.2 mm (0.1260 inch) diameter with tolerance of plus 0.0001 to plus 0.0004 inches for precise bore finishing
• Four straight flutes for smooth, stable cutting performance
• Bright uncoated finish suitable for general machining applications
• Straight cylindrical shank for direct chuck clamping without adapters
• Right-hand cut, no coolant-through requirement simplifies setup

Compatibility

Designed as a standard solid carbide chucking reamer for general machining applications within the 3.00 mm to 4.00 mm diameter range, part of the OSG 300D series.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Secure the straight shank firmly in a drill chuck or collet before operation, and verify runout is within acceptable limits before cutting. Always bring the spindle to a complete stop before changing or inspecting the tool. Follow applicable shop safety procedures and machinery manufacturer guidelines for speeds and feeds appropriate to the workpiece material.