Value Collection SM0500850 Chucking Reamer 8.50mm Hss

Product Description

The VALUE COLLECTION SM0500850 is a straight-flute chucking reamer designed to finish-ream holes to a precise 8.50mm (0.3346 inch) diameter. Machined from high-speed steel (HSS) with a bright, uncoated finish, it delivers consistent sizing in a wide range of metals and plastics. The straight-cylindrical shank seats securely in a drill press chuck, lathe tailstock, or CNC turret, making it a reliable choice for machine shops, maintenance facilities, and production environments. Six right-hand cutting flutes provide smooth material removal and accurate hole geometry on each pass.

This reamer is suited for precision hole finishing operations where a drilled hole must be brought to a tight final diameter. It is commonly used in general metalworking, toolroom applications, and maintenance-and-repair contexts where hole roundness, surface finish, and diameter tolerance matter. The 6-inch overall length and 1-1/2-inch flute length suit through-holes and shallow blind holes in moderate-thickness workpieces. Machinists and tool-and-die technicians are the primary users.

Key Features

• 8.50mm (0.3346 inch) finished hole diameter for precise sizing
• High-speed steel (HSS) construction for durability across common work materials
• 6 straight right-hand flutes for smooth cutting action and consistent finish
• Straight-cylindrical shank compatible with standard drill chucks and collet holders
• Bright, uncoated finish — ready to run without additional prep
• Standard 6-inch OAL suits drill presses, lathes, and CNC turret applications

Compatibility

Designed as a general-purpose chucking reamer for use in any machine tool equipped with a drill chuck or collet capable of holding a straight-cylindrical shank in the appropriate diameter range.

Installation Notes

Chucking reamers are installed and operated by machinists using a drill press, lathe, or CNC machine. Power down and lock out the machine before mounting or removing the reamer from the chuck. Always run a reamer at lower RPM than the equivalent drill and apply cutting fluid appropriate to the workpiece material. Never rotate a reamer in reverse, as this will dull the cutting edges.