Hertel 72034788 Chucking Reamer 0.4780 in Hss 6 Flute

Product Description

The HERTEL 72034788 is a straight-flute chucking reamer designed to bring bored or drilled holes to a precise finished diameter. Built from high-speed steel (HSS) with a bright, uncoated finish, this reamer delivers consistent sizing in ferrous and non-ferrous materials under standard cutting conditions. The straight-cylindrical shank seats directly in a drill chuck or collet, making it a straightforward drop-in for manual or CNC drilling operations. At 0.4780 inches in diameter with an 8-inch overall length and a 2-inch flute length, it is sized for moderate-depth through-hole finishing work where tight dimensional tolerance is required.

This reamer is suited to machine shop, toolroom, and maintenance applications where a hole must be reamed to a close-tolerance fit for a pin, bushing, or bearing seat. It cuts right-hand with six straight flutes, producing a smooth surface finish in a single pass when proper feeds and speeds are observed. Typical users include machinists, tool-and-die makers, and maintenance mechanics working on fixturing, assembly components, and precision mechanical assemblies.

Key Features

• 0.4780-inch finished diameter for close-tolerance hole sizing
• HSS construction provides good toughness and wear resistance in general-purpose cutting
• Six straight flutes for smooth, consistent stock removal and surface finish
• Right-hand cutting direction compatible with standard spindle rotation
• Straight-cylindrical shank fits standard drill chucks and collet systems without an adapter
• Bright, uncoated finish suitable for use with cutting fluid in a range of workpiece materials

Compatibility

Designed as a general-purpose chucking reamer for use in drill presses, lathes, milling machines, and CNC machining centers equipped with a standard drill chuck or collet capable of accepting a straight-cylindrical shank in the 0.4780-inch diameter range.

Installation Notes

A licensed machinist or qualified maintenance mechanic should install and operate this tool. Secure the shank fully in the chuck or collet and verify runout before cutting. Always apply an appropriate cutting fluid for the workpiece material and never run a reamer in reverse, as back-cutting will damage the flute edges. Ensure the workpiece is rigidly fixtured before beginning the reaming pass.