Value Collection 144429600900000 Chucking Reamer Letter I

Product Description

The VALUE COLLECTION 144429600900000 is a letter-size I chucking reamer designed for precision hole finishing in metal and other rigid materials. Built from high-speed steel (HSS) with a bright, uncoated finish, it delivers consistent sizing at a 0.272-inch diameter. The straight flute geometry suits most general-purpose reaming applications, and the right-hand cut direction is standard for use in conventional drill presses, lathes, and CNC turning centers. At 6 inches overall length with a 1.5-inch flute length, this reamer fits a practical range of through-hole and shallow blind-hole finishing tasks. Machinists and tool-and-die tradespeople are the primary installers of this type of tooling.

This chucking reamer is suited for production and job-shop environments where accurate, repeatable hole sizing in the 0.250- to 0.299-inch decimal inch range is required. The straight-cylindrical shank allows direct chuck mounting on lathes, drill presses, or mill-drill setups without the need for a taper adapter. It is a non-dowel-pin and non-over-under-size tool, making it appropriate for standard nominal-diameter hole finishing rather than press-fit or interference-fit applications.

Key Features

• Letter I diameter: 0.272 inches, within the 0.250 to 0.299 inch decimal range
• HSS construction provides adequate hardness and toughness for ferrous and non-ferrous materials
• Straight flute design works well for through-holes and short blind holes with chip clearance
• Right-hand cut direction compatible with standard machine rotation
• Bright/uncoated finish maintains dimensional accuracy without coating buildup affecting final hole size
• Straight-cylindrical shank for direct chuck mounting on common machine tools

Compatibility

Designed as a standard chucking reamer for use in lathe tailstocks, drill press chucks, and mill-drill setups that accept straight-cylindrical shank tooling in the appropriate diameter range.

Installation Notes

Chucking reamers are installed and operated by machinists following standard machine-shop practices. Ensure the workpiece is secured and the machine spindle is running at the correct reduced RPM relative to drilling speed before engaging the reamer. Always apply cutting fluid appropriate for the workpiece material to extend tool life and improve surface finish. Inspect the shank and flutes for damage before each use, and never run a reamer in reverse, as this dulls the cutting edges.