Value Collection SM0407770 Chucking Reamer 0.777 in Hss

Product Description

The VALUE COLLECTION SM0407770 is a straight-flute chucking reamer designed to finish-ream holes to a precise 0.7770-inch diameter in metalworking and machining applications. Manufactured from high-speed steel (HSS) with a bright, uncoated finish, it delivers consistent dimensional accuracy in production and job-shop environments. The straight-cylindrical shank seats securely in standard drill chucks and machine spindles. With an overall length of 9.5 inches and a 2.5-inch flute length, this reamer suits through-hole and blind-hole finishing passes where tight tolerances and smooth bore surfaces are required. Machinists and tool-and-die technicians are the primary users of this tool.

This chucking reamer is suited for use in drill presses, CNC machining centers, engine lathes, and manual turret lathes. It is appropriate for reaming ferrous and non-ferrous materials where a right-hand cutting direction and straight-flute geometry are compatible with the workpiece and setup. The 0.7770-inch diameter falls within the 0.7000 to 0.9999-inch decimal-inch reamer range, making it a standard sizing option for close-tolerance hole finishing in both prototyping and production runs.

Key Features

• 0.7770-inch reaming diameter for precise, repeatable hole sizing
• High-speed steel (HSS) construction provides durability across a range of workpiece materials
• Straight-flute geometry suited for through-hole and short blind-hole applications
• Bright, uncoated finish maintains sharp cutting edges out of the box
• Straight-cylindrical shank compatible with standard drill chucks and collet holders
• Right-hand cutting direction for conventional machine setups

Compatibility

Designed as a standard chucking reamer for use in any machine tool equipped with a drill chuck or straight-shank collet holder sized to accept the straight-cylindrical shank.

Installation Notes

Installation is performed by qualified machinists or tool-and-die technicians. Secure the shank fully in the chuck or collet before starting the spindle, and verify runout before taking a finishing pass. Always apply appropriate cutting fluid for the workpiece material to extend tool life and achieve the target surface finish. Power down and lock out the machine before changing or inspecting the reamer.