Hertel 45674777 Chucking Reamer 0.1295 in Solid Carbide 4 Flute

Product Description

The HERTEL 45674777 is a solid carbide chucking reamer designed for precision hole finishing in machine shop and production environments. With a cutting diameter of 0.1295 inches and a 4-flute straight flute geometry, it removes minimal material to bring drilled or bored holes to tight dimensional tolerances. The straight shank mounts directly in a drill chuck, collet, or floating reamer holder on a drill press, machining center, or CNC lathe. The bright polished finish reduces friction and aids chip evacuation. Right-hand cutting direction is standard for conventional machine spindle rotation. Overall length is 2.5 inches with a 0.75-inch flute length, making it suited for shallow-to-moderate depth holes in the 0.1000 to 0.1499 inch diameter range.

This chucking reamer is intended for precision reaming operations in metalworking, toolroom, and production machining applications. It is appropriate for finishing holes in steel, cast iron, aluminum, and similar machinable materials where hole diameter accuracy and surface finish are critical. Machinists, tool and die makers, and CNC operators use chucking reamers like this one as a final sizing pass after drilling or boring to achieve close-tolerance fits for pins, bushings, and bearings.

Key Features

• Solid carbide construction provides rigidity and wear resistance for consistent dimensional accuracy
• 4-flute straight flute geometry delivers smooth surface finish and stable cutting action
• Bright polished coating reduces cutting friction and assists chip flow
• Right-hand cutting direction compatible with standard machine spindle rotation
• Straight shank accepts standard drill chucks, ER collets, and floating holders
• 0.1295 inch cutting diameter falls within the 0.1000 to 0.1499 inch decimal inch range

Compatibility

Designed as a standard chucking reamer for use in drill presses, machining centers, CNC lathes, and manual mills equipped with a drill chuck or collet system accepting a straight shank. Not configured as a dowel pin reamer or over/under size reamer.

Installation Notes

A licensed machinist or CNC operator should secure the straight shank in a properly sized collet or chuck and verify runout before reaming. Always use the recommended cutting fluid or coolant for the workpiece material to extend tool life and improve surface finish. Feed rate and spindle speed should be set conservatively for carbide reamers to avoid chipping the cutting edges. Inspect the reamer for edge condition before each use and never force the tool through an undersized pilot hole.