Value Collection SM0406640 Chucking Reamer 0.6640 in Hss

Product Description

The VALUE COLLECTION SM0406640 is a straight-flute chucking reamer designed to finish-ream holes to a precise 0.6640-inch diameter. Made from high-speed steel (HSS) with a bright, uncoated finish, this reamer delivers consistent bore sizing in a wide range of metals and alloys. The straight-cylindrical shank seats securely in a drill press chuck, lathe tailstock, or CNC turret. With a 9-inch overall length and a 2.25-inch flute length, it provides adequate reach for through-hole and blind-hole applications in production and jobshop environments. Right-hand cutting direction is standard for conventional machine operation. Machinists and toolroom technicians are the primary users.

This chucking reamer suits production machine shops, toolrooms, and maintenance departments that require accurate hole finishing without grinding a custom tool. It is appropriate for use in drill presses, lathes, CNC machining centers, and manual milling machines where a straight-cylindrical shank is preferred. The 0.6640-inch diameter falls within the mid-range of standard decimal-inch reamer sizing, making it a practical stock item for shops that work with fractional and decimal hole tolerances in ferrous and non-ferrous materials.

Key Features

• 0.6640-inch finished-bore diameter for precise hole sizing
• High-speed steel (HSS) construction provides good wear resistance across common workpiece materials
• Straight flute geometry suits general-purpose through-hole and short blind-hole reaming
• Bright, uncoated finish allows easy visual inspection of cutting edges
• Straight-cylindrical shank is compatible with standard drill chucks and collet systems
• Right-hand cutting direction matches standard machine spindle rotation

Compatibility

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

Installation Notes

A licensed machinist or toolroom technician should install and operate this reamer. Power down and lock out the machine before securing the shank in the chuck or collet. Always feed at a reduced rate compared to drilling and apply cutting fluid appropriate to the workpiece material to extend tool life and maintain bore finish. Do not use this tool to remove excessive stock — pre-drill or bore the hole to within a few thousandths of the finished diameter before reaming.