Cleveland C25845 Chucking Reamer 10 Mm Hss

Product Description

The CLEVELAND C25845 is a straight-flute chucking reamer designed for precision hole finishing in metal workpieces. Built from high-speed steel (HSS) with a bright, uncoated finish, it delivers consistent bore sizing to a diameter of 10 mm (0.3937 inches) with a tolerance of +0.0001 to +0.0004 inches. The six-flute, right-hand-cut configuration provides smooth material removal and accurate sizing in a single pass. With an overall length of 7.0000 inches (177.80 mm) and a flute length of 1-3/4 inches (44.45 mm), it fits standard drill press and CNC lathe chuck setups used by machinists and tool-and-die professionals.

This reamer is suited for production and maintenance machining environments where hole tolerance and surface finish are critical. It is appropriate for use in ferrous and non-ferrous materials where HSS tooling meets the application requirements. The straight-cylindrical shank mounts directly into drill chucks, collet holders, and floating reamer holders on manual or CNC equipment. It is commonly used in job shops, maintenance repair operations, and light manufacturing where repeatable bore sizing is required.

Key Features

• 10 mm (0.3937 inch) reamer diameter with +0.0001 to +0.0004 inch tolerance for precision bore finishing
• Six straight flutes with right-hand cut for smooth, consistent material removal
• High-speed steel construction provides durability across a range of workpiece materials
• Bright, uncoated finish — no coating buildup to affect dimensional accuracy
• Straight-cylindrical shank for compatibility with standard drill chucks and collet holders
• Overall length of 7.0000 inches allows reach in typical drill press and lathe setups

Compatibility

Designed as an OEM-style chucking reamer for use in standard drill chucks, collet holders, and floating reamer holders accepting a straight-cylindrical shank at the specified diameter range.

Installation Notes

Installation and use should be performed by a qualified machinist or toolroom technician. Ensure the machine spindle is fully stopped and locked out before mounting or removing the reamer from its holder. Secure the straight shank firmly in a properly sized chuck or collet to prevent runout, which will negatively affect bore tolerance and surface finish. Always use appropriate cutting fluid for the workpiece material and verify proper feed rate and spindle speed before commencing the reaming operation.