Hertel 2328490 Hand Reamer 3/16 in 6 Flute Hss

Product Description

The HERTEL 2328490 is a straight-flute hand reamer designed to finish-ream drilled holes to a precise 3/16 inch (0.1875 inch) diameter. Built from high speed steel (HSS) with a bright, uncoated finish, it delivers accurate sizing and a clean bore surface in a wide range of metals and softer materials. The 6-flute configuration distributes cutting load evenly, reducing chatter and improving hole roundness. With a 1-3/4 inch flute length and a 3-1/2 inch overall length, this tool is sized for hand-reaming operations where controlled material removal and tight tolerances are required. It is used by machinists, maintenance technicians, and trade professionals performing precision fitment work.

This reamer is suited for hand-driven finishing passes on holes that have been pre-drilled or rough-bored to near-final size. Typical applications include bearing fits, pin fits, and bushing bores in light fabrication, maintenance, and repair work. The straight shank accepts standard drill chucks or tap wrenches for manual operation. Right-hand cutting action is standard for conventional clockwise rotation. It is appropriate for use in ferrous and non-ferrous materials where a close-tolerance finished bore is required.

Key Features

• 3/16 inch (0.1875 inch) reamer diameter for precision hole finishing
• 6 straight flutes for even load distribution and reduced chatter
• High speed steel construction for durability across a range of workpiece materials
• Bright, uncoated finish suitable for general-purpose reaming applications
• Right-hand cutting direction with straight shank for use in drill chucks or tap wrenches
• Compact 3-1/2 inch overall length for accessibility in tight work areas

Compatibility

Designed as an OEM-style hand reamer for use wherever a 3/16 inch finished bore diameter is required in standard hand-reaming operations.

Installation Notes

Installation and use should be performed by a qualified machinist or maintenance technician familiar with reaming procedures. Always pre-drill or bore the hole to the correct undersize before using a hand reamer to avoid excessive tool load or breakage. Secure the workpiece firmly before beginning the reaming pass, and apply cutting fluid appropriate for the workpiece material to extend tool life and improve finish quality. Never rotate a hand reamer in reverse, as this can damage the cutting edges.