Hertel 72034754 Chucking Reamer 0.4750 in Hss 6 Flute

Product Description

The HERTEL 72034754 is a straight-flute chucking reamer designed to finish-ream drilled holes to a precise 0.4750-inch diameter. Machined from high-speed steel (HSS) with a bright, uncoated finish, this reamer delivers accurate sizing in a wide range of ferrous and non-ferrous workpiece materials. The straight-cylindrical shank seats directly in standard drill chucks or collets, and the 6-flute geometry distributes cutting load evenly to produce smooth, round bores. Overall length is 8 inches with a 2-inch flute length, keeping the tool rigid while providing adequate chip clearance for typical through-hole and blind-hole applications.

This chucking reamer is suited for machine-shop, tool-room, and maintenance applications where a hand-reamed or rough-drilled hole requires a precise final diameter. Right-hand cutting rotation makes it compatible with conventional CNC machining centers, manual knee mills, drill presses, and engine lathes. The 0.4750-inch diameter falls within the 0.4000 to 0.4999-inch decimal-inch reamer range and is a common size for close-tolerance bore work in industrial and job-shop environments. Machinists and toolmakers are the primary users.

Key Features

• 0.4750-inch finished bore diameter with straight-flute geometry for consistent hole quality
• 6-flute design distributes cutting forces evenly, reducing chatter and improving surface finish
• HSS construction provides good toughness and wear resistance across a broad material range
• Bright uncoated finish suits general-purpose use without the thermal sensitivity of coated tools
• Straight-cylindrical shank fits standard drill chucks and collets without adapter sleeves
• Right-hand cutting direction compatible with all conventional machine spindles

Compatibility

Designed as a general-purpose chucking reamer for use in CNC machining centers, knee mills, drill presses, and lathes equipped with a standard drill chuck or collet capable of accepting a straight-cylindrical shank at the 0.4750-inch diameter range.

Installation Notes

Install in a properly sized collet or drill chuck and verify runout before cutting to maintain bore accuracy. Machine spindle speed and feed rate should be calculated for the workpiece material and tool diameter per standard HSS reamer guidelines. Cutting fluid is strongly recommended to extend tool life and improve surface finish. Never reverse spindle rotation while the reamer is engaged in a bore.