Hertel 72293244 Chucking Reamer 0.1885 in Hss 6 Flute

Product Description

The HERTEL 72293244 is a high-speed steel (HSS) chucking reamer designed to finish-ream drilled or bored holes to precise tolerances. It features a straight-cylindrical shank for use in drill chucks or collet holders on manual or CNC machine tools. The reamer measures 0.1885 inches in diameter with an overall length of 3.5 inches and a flute length of 1.125 inches. Six straight flutes cut in the right-hand direction, producing smooth, accurate bores. The bright, uncoated finish is standard for HSS reamers used in general-purpose ferrous and non-ferrous machining operations.

This chucking reamer is suited for machine shop and production environments where hole finishing to a specific decimal diameter is required. The 0.1885-inch diameter falls within the 0.1500 to 0.1999-inch range category, making it appropriate for small-diameter precision bore finishing. It is sold in single quantities, making it practical for both job shop use and maintenance machining. The straight flute geometry handles a wide range of materials and is compatible with standard cutting fluids used in drilling and reaming operations.

Key Features

• 0.1885-inch diameter for precision small-bore finishing
• HSS tool material for general-purpose machining of ferrous and non-ferrous stock
• Six straight flutes, right-hand cutting direction
• Straight-cylindrical shank fits standard drill chucks and collet holders
• Bright, uncoated finish — no coating degradation risk at lower cutting speeds
• Over/under size designation for controlled tolerance applications

Compatibility

Designed as a general-purpose chucking reamer for use in drill presses, lathes, milling machines, or CNC machining centers equipped with a drill chuck or collet that accepts a straight-cylindrical shank in the applicable diameter range.

Installation Notes

Chucking reamers are installed and removed by a qualified machinist with the spindle fully stopped and the machine powered down or locked out per facility lockout/tagout procedures. Secure the shank firmly in a properly sized collet or drill chuck before operation. Always apply an appropriate cutting fluid for the workpiece material to extend tool life and maintain bore finish quality. Do not use a chucking reamer to remove more material than the allowance recommended for the reamer diameter class.