Hertel 72034317 Chucking Reamer 0.4310 in Hss 6 Flute

Product Description

The HERTEL 72034317 is a straight-flute chucking reamer designed for precision hole finishing in metal machining applications. Manufactured from high-speed steel (HSS) with a bright, uncoated finish, it delivers consistent sizing and smooth surface finish in through-holes and blind holes. The reamer measures 0.4310 inches in diameter with a 7-inch overall length and a 1.75-inch flute length. The straight-cylindrical shank is compatible with standard drill chucks and collet holders. With six flutes and right-hand cutting direction, it provides stable material removal and accurate final bore geometry for close-tolerance work.

This chucking reamer is suited for use in machine shop environments, production machining, and maintenance repair operations where precise hole sizing is required. It is appropriate for use in drill presses, lathes, CNC machining centers, and manual mills. Typical applications include finishing pre-drilled or bored holes to a final diameter of 0.4310 inches in ferrous and non-ferrous metals. Licensed machinists and toolroom technicians are the primary users of this tool.

Key Features

• 0.4310-inch finished diameter for close-tolerance hole sizing
• HSS construction provides durability across a wide range of workpiece materials
• Straight-cylindrical shank fits standard chucks and collet systems
• 6-flute, right-hand cutting geometry for smooth, stable material removal
• Bright, uncoated finish — ready for use or compatible with shop-applied cutting fluids
• 7-inch overall length accommodates moderate-depth hole access

Compatibility

Designed as a machine-style chucking reamer for use in standard drill press, lathe tailstock, and machining center setups accepting a straight-cylindrical shank in the 0.4000 to 0.4999-inch diameter range.

Installation Notes

Installation and use should be performed by a qualified machinist or toolroom technician. Secure the shank firmly in a drill chuck or collet before operation and verify runout is within acceptable limits to protect bore accuracy. Always apply appropriate cutting fluid for the workpiece material and ensure the workpiece is clamped securely before engaging the reamer. Never use hand pressure alone to advance a chucking reamer — machine feed control is required for consistent results.