Hertel 72291305 Chucking Reamer 15/32 in Hss 6 Flute

Product Description

The HERTEL 72291305 is a high-speed steel (HSS) chucking reamer designed to finish-ream drilled or bored holes to a precise diameter. With a 15/32 inch (0.4688 inch decimal) cutting diameter, 6 straight flutes, and an overall length of 5-3/4 inches, this tool delivers accurate sizing and smooth surface finish in metal working applications. The straight-cylindrical shank mounts directly in a drill chuck or collet on a drill press, lathe, or CNC machine. It is used by machinists and tool-and-die workers wherever hole tolerance and surface finish are critical. The tool weighs 0.15 pounds.

This chucking reamer is suited for production and maintenance machining operations where a pre-drilled hole must be brought to a close-tolerance final diameter. The 1-3/4 inch flute length accommodates typical hole depths in the 15/32 inch diameter range. Straight fluting makes this reamer appropriate for through-holes and short blind holes in ferrous and non-ferrous metals. It is a standard catalog tool used across job shops, manufacturing facilities, and maintenance repair operations.

Key Features

• 15/32 inch (0.4688 inch decimal) cutting diameter for precise hole sizing
• High-speed steel construction provides durability in ferrous and non-ferrous metals
• 6 straight flutes for smooth cutting action and consistent surface finish
• Straight-cylindrical shank for direct mounting in drill chucks or collets
• 1-3/4 inch flute length suits standard hole depths in this diameter range
• 5-3/4 inch overall length provides rigidity and reach in common machine setups

Compatibility

Designed as a standard chucking reamer for use in drill presses, lathes, milling machines, and CNC machining centers equipped with a chuck or collet capable of accepting a straight-cylindrical shank in the 15/32 inch diameter class.

Installation Notes

Chucking reamers are installed and operated by machinists; ensure the machine spindle is fully stopped and locked out before mounting or removing the tool. Secure the straight-cylindrical shank firmly in a properly sized collet or drill chuck to prevent runout. Always ream at reduced spindle speed compared to drilling, and use appropriate cutting fluid for the workpiece material to extend tool life and improve finish. Follow applicable shop safety and machine guarding practices during operation.