Hertel 72026958 Chucking Reamer 0.2695 in Hss 6 Flute

Product Description

The HERTEL 72026958 is a straight-flute chucking reamer designed for precision hole finishing in metal working applications. Built from high-speed steel (HSS) with a bright, uncoated finish, this reamer delivers accurate sizing on pre-drilled holes to achieve tight dimensional tolerances. It measures 0.2695 inches in diameter with a 6-inch overall length and a 1.5-inch flute length. The straight-cylindrical shank mounts securely in standard drill chucks or collet holders. With six right-hand cutting flutes, it removes material evenly and produces a smooth bore finish suitable for close-tolerance work.

This chucking reamer is suited for machine shop and maintenance applications where holes must be brought to a precise final diameter. It fits standard drill press, lathe, or CNC machining center setups. Typical applications include reaming holes in mild steel, cast iron, aluminum, and similar machinable materials. It is sized within the 0.2500 to 0.2999 inch decimal inch reamer diameter range, making it appropriate for finishing letter-size or fractional holes near the 0.2695 inch nominal dimension.

Key Features

• 0.2695 inch diameter for precise hole finishing within the 0.2500 to 0.2999 inch range
• High-speed steel (HSS) construction provides durability across common machinable metals
• Bright, uncoated finish suitable for general-purpose reaming
• Six straight flutes with right-hand cutting direction for smooth, even material removal
• Straight-cylindrical shank for compatibility with standard chucks and collet holders
• 6-inch overall length with 1.5-inch flute length for controlled cutting depth

Compatibility

Designed as a general-purpose chucking reamer for use in drill presses, lathes, and machining centers equipped with standard chucks or collet systems accepting a straight-cylindrical shank.

Installation Notes

Chucking reamers are installed and operated by machinists and tooling technicians. Ensure the workpiece is securely fixtured and the machine spindle is properly aligned before reaming to avoid bell-mouthing or taper. Always use an appropriate cutting fluid for the workpiece material to extend tool life and improve finish quality. Never attempt to ream a hole more than a few thousandths of an inch undersize in a single pass, as overloading the reamer can cause premature wear or breakage.