Value Collection SM0407780 Chucking Reamer Hss 0.778 in

Product Description

The VALUE COLLECTION SM0407780 is a straight-flute chucking reamer designed for precision hole finishing in machine shop and production environments. Manufactured from high-speed steel (HSS) with a bright, uncoated finish, this reamer delivers accurate sizing at 0.7780 inches diameter. The straight-cylindrical shank mounts directly in drill press chucks, milling machine collets, or CNC toolholders. With a 9.5-inch overall length and a 2.5-inch flute length, it is suited for moderate-depth through-holes and blind holes where tight tolerances are required. Installation is performed by machinists and toolroom technicians. Right-hand cutting direction is standard for conventional spindle rotation.

This chucking reamer is appropriate for general-purpose reaming operations in metalworking environments, including job shops, maintenance facilities, and production machining cells. It handles ferrous and non-ferrous materials typical of HSS tooling applications. The 0.7780-inch nominal diameter places it in the 0.7000 to 0.9999 inch reamer diameter range, making it a common selection for finish-reaming drilled or bored holes to close dimensional tolerances in both prototype and volume production work.

Key Features

• 0.7780-inch nominal diameter for precise hole sizing
• High-speed steel (HSS) construction for durability across common workpiece materials
• Straight flute geometry suits a wide range of through-hole and moderate blind-hole applications
• Straight-cylindrical shank provides direct chuck or collet mounting without adapters
• Bright, uncoated finish — no coating delamination concern in standard cutting fluids
• Right-hand cutting direction compatible with standard machine spindle rotation

Compatibility

Designed as an OEM-style replacement or standard toolroom chucking reamer for use in drill presses, milling machines, and CNC machining centers equipped with chucks or collets accepting a straight-cylindrical shank at this diameter class.

Installation Notes

Chucking reamers are installed by machinists; ensure the machine spindle is fully stopped and locked out before mounting or removing the tool. Secure the straight-cylindrical shank firmly in a properly sized chuck or collet to prevent runout. Always apply appropriate cutting fluid for the workpiece material to extend tool life and maintain hole finish quality. Follow applicable shop safety standards and machine manufacturer guidelines during setup and operation.