Value Collection SM0406850 Chucking Reamer 0.685 in Hss

Product Description

The VALUE COLLECTION SM0406850 is a straight-flute chucking reamer designed to bring bored or drilled holes to a precise finished diameter of 0.6850 inches. Built from high-speed steel (HSS) with a bright, uncoated finish, this reamer delivers consistent performance in ferrous and non-ferrous materials. The straight-cylindrical shank seats securely in standard drill chucks or collet systems, and the right-hand cutting direction is compatible with conventional machine spindle rotation. With an overall length of 9 inches and a flute length of 2.25 inches, it handles typical through-hole and blind-hole finishing operations on drill presses, lathes, and CNC machining centers.

This chucking reamer is suited for machine shop, maintenance, and tool room applications where hole tolerances require finishing beyond what a drill alone can achieve. The 0.6850-inch diameter falls within the 0.5000 to 0.6999-inch decimal inch range, making it a standard selection for production runs and one-off precision fits. Machinists, toolmakers, and maintenance technicians working in manufacturing, industrial maintenance, and heavy equipment repair will find this a reliable choice for finishing close-tolerance bores.

Key Features

• 0.6850-inch finished bore diameter for precise hole sizing
• High-speed steel (HSS) construction provides durability across common workpiece materials
• Bright uncoated finish suitable for use with cutting fluid in standard reaming operations
• Straight flute geometry supports smooth chip evacuation in through-hole applications
• Right-hand cutting direction compatible with standard machine spindle rotation
• Straight-cylindrical shank seats in drill chucks and collet holders without modification

Compatibility

Designed as a standard chucking reamer for use in drill presses, engine lathes, turret lathes, and CNC machining centers equipped with a drill chuck or collet capable of accepting a straight-cylindrical shank.

Installation Notes

Chucking reamers are installed and operated by machinists and toolmakers following standard machine shop practices. Always power down and lock out the machine spindle before securing or removing the reamer from the chuck or collet. Use an appropriate cutting fluid for the workpiece material to extend tool life and improve surface finish. Do not attempt to use a chucking reamer by hand — it is designed for machine use only, and hand-reaming requires a separate tool type.