Hertel 72033475 Chucking Reamer 0.3470 in Hss 6 Flutes

Product Description

The HERTEL 72033475 is a straight-flute chucking reamer designed for precision hole finishing in metal and similar materials. Built from high-speed steel (HSS) with a bright, uncoated finish, this reamer holds tight tolerances on holes in the 0.3000 to 0.3499 inch diameter range, with a nominal cutting diameter of 0.3470 inches. The straight-cylindrical shank mounts cleanly in standard drill chucks or collet holders, and the right-hand cutting direction suits conventional machine operation. With 6 flutes and a 1.5 inch flute length across a 6 inch overall length, this tool delivers consistent finishes in machining centers, lathes, and drill presses.

This chucking reamer is suited for production and job-shop environments where final hole sizing, straightness, and surface finish are required after drilling. It handles general-purpose reaming in ferrous and non-ferrous metals. Machinists and toolroom technicians reach for this style of reamer when drilling alone cannot achieve the required hole tolerance or finish quality. Its straight flute geometry makes it appropriate for through-holes and materials that do not require the chip-clearing advantage of spiral flutes.

Key Features

• 0.3470 inch cutting diameter for precision hole finishing within the 0.3000 to 0.3499 inch range
• 6-flute straight geometry delivers consistent surface finish in through-hole applications
• High-speed steel (HSS) construction provides durability across a wide range of ferrous and non-ferrous materials
• Bright uncoated finish — no coating buildup to affect dimensional accuracy
• Straight-cylindrical shank for positive grip in standard drill chucks and collet holders
• Right-hand cutting direction compatible with conventional machine spindle rotation

Compatibility

Designed as an OEM-style replacement and standard tooling option for use in any machine spindle accepting a straight-cylindrical shank reamer of this diameter class, including drill presses, lathes, and CNC machining centers.

Installation Notes

Installation and use of chucking reamers should be performed by qualified machinists or toolroom personnel. Power down and lock out the machine spindle before mounting or removing the reamer from its holder. Ensure the straight-cylindrical shank is fully seated and securely clamped in the chuck or collet before operation. Use appropriate cutting fluid for the workpiece material to extend tool life and maintain hole finish quality.