Hertel 72295140 Chucking Reamer 7/32 in Hss 6 Flute

Product Description

The HERTEL 72295140 is a high-speed steel (HSS) chucking reamer designed for precision hole finishing in metal workpieces. With a 7/32 inch (0.2188 inch decimal) diameter and a 6-flute spiral configuration with right-hand spiral direction, it delivers a smooth, accurate bore finish in a single pass. The 1-1/4 inch flute length provides adequate chip clearance, while the straight-cylindrical shank seats securely in standard drill chucks and collets. Machinists and tool-and-die professionals use this reamer on lathes, drill presses, and machining centers where tight bore tolerances are required.

This chucking reamer is suited for production and job-shop environments where consistent hole sizing in the 0.2000 to 0.2499 inch diameter range is needed. The HSS construction handles a wide range of workpiece materials including mild steel, aluminum, brass, and plastics. At 3-3/4 inches overall length, it fits standard toolholding setups without extension. It is not configured as a dowel-pin reamer or an over/under-size reamer, making it a standard-dimension finishing tool for general-purpose applications.

Key Features

• 7/32 inch (0.2188 inch decimal) diameter for precise bore finishing in the 0.2000 to 0.2499 inch range
• 6-flute spiral geometry with right-hand spiral direction for smooth cutting action and reduced chatter
• HSS tool material provides good wear resistance across a broad range of workpiece materials
• Straight-cylindrical shank compatible with standard drill chucks and collets
• 1-1/4 inch flute length promotes efficient chip evacuation during through-hole and blind-hole reaming
• 3-3/4 inch overall length suits common machine setups without requiring extended toolholding

Compatibility

Designed as a standard chucking reamer for use in drill presses, lathes, and machining centers equipped with drill chucks or collets accepting a straight-cylindrical shank in the appropriate diameter range.

Installation Notes

A licensed machinist or qualified tool operator should install and operate this reamer. Secure the straight-cylindrical shank firmly in the chuck or collet before use and verify runout is within acceptable limits for the required tolerance. Always follow shop safety protocols including proper workpiece clamping and appropriate cutting fluid application for the workpiece material. Power down the machine completely before changing or adjusting tooling.