Hertel 2329639 Hand Reamer 3/8 in 6 Flute Hss Bright

Product Description

The HERTEL 2329639 is a 3/8-inch diameter hand reamer designed to finish and size drilled or bored holes to close tolerances. Constructed from high speed steel with a bright uncoated finish, this reamer features six spiral flutes with a left-hand spiral direction and right-hand cutting direction. The spiral flute geometry promotes smooth chip evacuation and reduces chatter during hand reaming operations. With a 2.5-inch flute length and 5-inch overall length, it fits standard tap wrench or reamer handle setups. Machinists, tool and die workers, pipefitters, and HVAC technicians reach for this tool when a drilled hole needs to be brought to precise final diameter.

This hand reamer is suited for use in metalworking and mechanical assembly applications where a 3/8-inch finished bore is required. It performs well in through-holes and blind holes in ferrous and non-ferrous metals when used with appropriate cutting fluid. The straight shank is compatible with standard reamer handles and tap wrenches. Typical applications include sizing holes for fasteners, pins, bushings, and fittings in fabrication, maintenance, and repair work across industrial and trade settings.

Key Features

• 3/8-inch (0.3750 inch) reamer diameter for precise hole sizing
• Six spiral flutes with left-hand spiral direction for smooth chip flow
• Right-hand cutting direction for standard hand reaming operation
• High speed steel construction for durability across a range of metals
• Bright uncoated finish suitable for use with cutting fluids
• Straight shank fits standard tap wrenches and reamer handles

Compatibility

Designed as a standard straight-shank hand reamer compatible with tap wrenches and reamer handles accepting a 3/8-inch diameter shank tool.

Installation Notes

Hand reamers are operated by machinists, pipefitters, or maintenance technicians using a tap wrench or suitable reamer handle. The workpiece should be secured in a vise or fixture before reaming. Apply cutting fluid appropriate for the workpiece material to extend tool life and improve finish quality. Feed the reamer steadily with light, consistent pressure and always rotate in the cutting direction only — reversing rotation under load can damage the cutting edges.