Hertel 72025257 Chucking Reamer 0.2525 in Hss Straight Flute

Product Description

The HERTEL 72025257 is a high-speed steel (HSS) chucking reamer designed for precision hole finishing in metalworking applications. Built with a straight-cylindrical shank and six straight flutes with a right-hand cutting direction, this reamer delivers accurate, smooth bores in drilled or pre-machined holes. The bright, uncoated finish suits general-purpose reaming where additional coatings are not required. At 0.2525 inches in diameter with a 6-inch overall length and a 1.5-inch flute length, it fits standard drill chucks and collet holders used on lathes, drill presses, and CNC machining centers. Machinists and tool-and-die professionals select this reamer for finishing work that demands tight dimensional tolerances.

This chucking reamer is suited for production and maintenance machining environments where consistent hole sizing is critical. It is appropriate for use in ferrous and non-ferrous materials where HSS tooling is specified. The straight-cylindrical shank makes it compatible with a wide range of standard chucking setups. Typical applications include bore finishing in jig-and-fixture work, general machine shop operations, and repair machining where hole geometry must meet close tolerances. It is sold individually and requires no minimum order beyond one unit.

Key Features

• 0.2525-inch diameter for precise hole finishing within the 0.2500 to 0.2999-inch range
• Six straight flutes with right-hand cutting direction for smooth, controlled material removal
• High-speed steel (HSS) construction provides durability across a broad range of workpiece materials
• Straight-cylindrical shank seats securely in standard drill chucks and collet holders
• Bright, uncoated finish — no coating degradation risk in applications sensitive to coating flaking
• 6-inch overall length accommodates reach requirements in typical lathe and drill press setups

Compatibility

Designed as a standard chucking reamer for use in any machine tool equipped with a drill chuck or collet that accepts a straight-cylindrical shank in the appropriate diameter range.

Installation Notes

Chucking reamers are installed and operated by machinists on lathes, drill presses, or CNC machining centers. Always ensure the workpiece is securely fixtured and the spindle is at the correct reaming speed and feed rate before engaging the tool. Power down and de-energize the machine before changing or inspecting tooling. Do not reverse spindle direction while the reamer is engaged in the bore, as this can damage the cutting edges.