Osg 300-1181 Chucking Reamer 3mm Solid Carbide

Product Description

The OSG 300-1181 is a solid carbide chucking reamer designed to produce tight-tolerance bores in a wide range of workpiece materials. With a 3 mm reamer diameter and a 57 mm overall length, this tool is built for precision hole finishing in CNC machining centers, lathes, and drill presses. The straight flute geometry and right-hand cut deliver clean, consistent material removal. A bright, uncoated finish keeps the carbide substrate exposed for general-purpose applications across ferrous and non-ferrous materials. Diameter tolerance is held to +0.0001 to +0.0004 inches, making this reamer suitable for close-fit bore work where accuracy is critical.

The OSG 300-1181 is suited for general machining applications in job shop, production, and toolroom environments. It is well matched to smaller bore finishing operations where a 3 mm nominal diameter is required. The straight cylindrical shank accepts standard ER collet chucks, drill chucks, and floating holders commonly found in machining setups. The 16 mm flute length accommodates typical reaming depths for this diameter class. Licensed machinists and CNC operators are the primary users of this tool.

Key Features

• Solid carbide construction for rigidity and extended tool life compared to HSS alternatives
• Straight flute, right-hand cut geometry for clean hole finishing in through and blind bore applications
• Diameter tolerance of +0.0001 to +0.0004 inches supports close-fit and locating-pin bore work
• Bright, uncoated finish suitable for general machining across a broad range of materials
• 4-flute design balances cutting load and surface finish quality
• Straight cylindrical shank compatible with standard collet chucks and drill chucks

Compatibility

Designed as an OEM-style solid carbide chucking reamer for general machining applications across CNC machining centers, lathes, and drill presses accepting a straight cylindrical shank.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Secure the straight shank in a properly sized collet chuck or floating holder before use and verify runout with a dial indicator before cutting. Power down and lock out the machine before changing or adjusting tooling. Do not use this reamer as a drilling tool; always pre-drill the bore to the correct sub-size before reaming.