Alvord Polk 00400 Chucking Reamer 33/64 in Hss 6 Flute

Product Description

The ALVORD POLK 00400 is a straight-flute chucking reamer designed to finish-ream holes to a precise diameter in metal workpieces. Manufactured from high-speed steel (HSS) with a bright, uncoated finish, it delivers consistent sizing performance in drill press, lathe, and CNC mill applications. The reamer measures 33/64 inches (0.5156 inches decimal) in diameter and carries a diameter tolerance of +0.0003 to 0.0000 inches, ensuring close-tolerance hole finishing. With an overall length of 8 inches and a 2-inch flute length, it is suited for through-holes and blind-hole finish passes in production and job-shop environments.

This reamer is used in general metalworking applications where a drilled hole requires a precise, clean final diameter. It is appropriate for ferrous and non-ferrous materials in both production and maintenance-repair-operations (MRO) settings. The straight-cylindrical shank seats directly in a drill chuck, collet, or floating reamer holder, making it a straightforward tool change for machinists and toolroom technicians working on close-tolerance fitting, bushing installation, and dowel-pin hole preparation.

Key Features

• 33/64 inch (0.5156 inch) diameter with +0.0003 to 0.0000 inch tolerance for accurate hole sizing
• High-speed steel (HSS) construction for strength and wear resistance across common metalworking materials
• 6-flute straight design provides smooth cutting action and good chip clearance
• Right-hand cutting direction, standard for conventional reaming operations
• Straight-cylindrical shank fits standard drill chucks, collets, and floating holders without adapters
• Bright, uncoated finish - Series 897-A-S, no coolant-through requirement

Compatibility

Designed as a general-purpose OEM-style chucking reamer for use in drill presses, lathes, and machining centers that accept straight-cylindrical shank tooling.

Installation Notes

Installation and use should be performed by a qualified machinist or toolroom technician. Always secure the workpiece and ensure the spindle is fully stopped before changing tooling. Use a floating reamer holder where runout is a concern to avoid bell-mouthing the finished hole. Follow applicable shop safety standards and machine-tool operating procedures for speeds and feeds appropriate to the workpiece material.