Hertel 72004450 Chucking Reamer 0.0445 in Hss 4 Flute

Product Description

The HERTEL 72004450 is a high-speed steel (HSS) chucking reamer designed to produce tight-tolerance, smooth-finished holes in metal workpieces. With a reamer diameter of 0.0445 inches and a 4-flute straight-flute geometry, it removes a controlled amount of material from a pre-drilled hole to achieve precise sizing and surface finish. The bright, uncoated finish is well-suited for general-purpose machining applications. At 2.5 inches overall length with a 0.5-inch flute length, this is a compact tool intended for small-bore finishing work. It is installed and operated by machinists, toolroom technicians, and maintenance professionals using a lathe, drill press, or CNC machine with a compatible chuck.

This chucking reamer is used in production and toolroom environments where precise hole sizing is required on ferrous and non-ferrous metals. The straight-cylindrical shank provides secure, centered clamping in standard drill chucks or collet systems. The right-hand cutting direction makes it compatible with conventional machine spindle rotation. Its small diameter range positions it for micro-bore applications where tight dimensional tolerances and clean hole walls are essential to part function.

Key Features

• 0.0445-inch reamer diameter for precision small-bore finishing
• 4 straight flutes for smooth, consistent material removal
• High-speed steel (HSS) construction for durability across general machining operations
• Bright, uncoated finish suitable for standard cutting conditions
• Right-hand cutting direction compatible with conventional spindle rotation
• Straight-cylindrical shank for secure chuck or collet clamping

Compatibility

Designed as an OEM-style chucking reamer for use in standard drill chucks and collet systems on lathes, drill presses, and CNC machining centers accepting a straight-cylindrical shank in the 0.0445-inch diameter range.

Installation Notes

Chucking reamers are installed and operated by qualified machinists. Ensure the machine spindle is fully stopped and the tool is secured firmly in the chuck or collet before operation. A pre-drilled pilot hole slightly undersized from the finished bore diameter is required before reaming. Use appropriate cutting fluid for the workpiece material to extend tool life and achieve the intended surface finish.