Hertel 72034937 Chucking Reamer 0.4930 in 6 Flute Hss

Product Description

The HERTEL 72034937 is a straight-flute chucking reamer designed for precision hole finishing in metalworking applications. Built from high-speed steel (HSS) with a bright, uncoated finish, it delivers accurate sizing and smooth surface finishes in drilled or bored holes. The reamer measures 0.4930 inches in diameter with an 8-inch overall length and a 2-inch flute length. Its straight-cylindrical shank seats securely in standard drill chucks and collet holders. Six right-hand cutting flutes distribute cutting load evenly, reducing chatter and improving hole roundness. Machinists and tool-room technicians use this reamer for both production and maintenance work on lathes, drill presses, and milling machines.

This chucking reamer is suited for finishing holes in the 0.4930-inch diameter range across a wide range of ferrous and non-ferrous workpiece materials. It is typically used in machine shop environments, maintenance and repair operations, and toolroom applications where a precise, finished bore is required. The right-hand cutting direction is compatible with standard machine spindle rotation. The straight flute geometry is particularly effective in materials that produce short, broken chips, such as brass, cast iron, and free-machining steels.

Key Features

• 0.4930-inch finished hole diameter for precise bore sizing
• High-speed steel (HSS) construction provides good wear resistance and toughness
• 6 straight flutes with right-hand cutting direction for smooth, even material removal
• Bright, uncoated finish — no coating buildup to affect dimensional accuracy
• Straight-cylindrical shank compatible with standard drill chucks and collet holders
• 8-inch overall length with a 2-inch flute length for adequate reach in common setups

Compatibility

Designed as a standard chucking reamer for use in drill chucks, collet holders, and floating reamer holders on lathes, drill presses, and machining centers requiring a 0.4930-inch finished bore diameter.

Installation Notes

Installation and operation should be performed by qualified machinists familiar with rotating cutting tools and machine safety procedures. Always power down and lock out the machine spindle before mounting or removing the reamer. Secure the straight-cylindrical shank with adequate gripping length in the chuck or collet to prevent pullout under cutting load. Use appropriate cutting fluid for the workpiece material and avoid exceeding the recommended feed and speed parameters for HSS tooling.