Hertel 2416204 Chucking Reamer 5/16 in Hss Morse Taper

Product Description

The HERTEL 2416204 is a high-speed steel (HSS) chucking reamer designed to finish-ream drilled or bored holes to precise tolerances. The 5/16-inch (0.3125 inch) cutting diameter, six-flute spiral configuration, and right-hand cutting direction combine to produce smooth, accurate bores in ferrous and non-ferrous materials. The Morse taper shank — designated 1MT — seats directly into compatible drill press, lathe, or milling machine spindles without a separate chuck. The bright, uncoated finish is standard for general-purpose HSS reaming applications. Machinists, tool-and-die tradespeople, and maintenance mechanics typically reach for this reamer when hole quality and dimensional accuracy matter more than throughput speed.

This reamer fits production and job-shop environments where holes in the 0.3000–0.3499-inch diameter range require a clean, finished bore. It is appropriate for use in drill presses, engine lathes, and knee mills equipped with a No. 1 Morse taper spindle. The 6-inch overall length provides adequate reach for most through-hole and shallow blind-hole operations. The 1-1/2-inch flute length suits stock thicknesses common in fixture plates, flanges, and structural components.

Key Features

• 0.3125-inch cutting diameter covers the 0.3000–0.3499-inch reamer range
• Six spiral flutes, right-hand cut, for smooth chip evacuation and improved finish
• No. 1 Morse taper (1MT) shank seats directly in compatible machine spindles
• HSS construction handles a wide range of ferrous and non-ferrous workpiece materials
• Bright uncoated finish — ready for use with standard cutting fluids
• 6-inch OAL with 1-1/2-inch flute length for general-purpose depth reach

Compatibility

Designed for use in drill presses, lathes, and milling machines fitted with a No. 1 Morse taper (1MT) spindle or sleeve. Standard chucking reamer — not configured as an over/under-size or dowel-pin reamer.

Installation Notes

A qualified machinist should install and operate this reamer. Power down and lock out the machine spindle before seating or removing the Morse taper shank. Clean and inspect the spindle socket for burrs or debris before insertion — a contaminated taper bore will affect runout and hole quality. Apply an appropriate cutting fluid for the workpiece material; do not run HSS reamers dry in steel or cast iron.