Hertel 79889424 Chucking Reamer 0.1265 in Solid Carbide

Product Description

The HERTEL 79889424 is a solid carbide chucking reamer designed for precision hole finishing in metalworking applications. With a reamer diameter of 0.1265 inches and a tight tolerance of 0.0000 to 0.0002 inches, it delivers accurate, repeatable bore sizing in production and job-shop environments. The straight flute geometry and right-hand cutting direction make it well-suited for finishing drilled or bored holes in a wide range of ferrous and non-ferrous materials. At 2.25 inches overall length with a 0.625-inch flute length, this compact tool fits standard chucking setups on CNC machines, drill presses, and lathes. The bright, uncoated finish is compatible with most cutting fluids.

This chucking reamer is used in precision machining operations where hole tolerance and surface finish are critical. It is appropriate for production runs requiring consistent bore sizing in steel, aluminum, brass, and similar machinable materials. The straight cylindrical shank seats directly in standard drill chucks, collet chucks, and floating reamer holders without special adapters. Machinists, tool-and-die makers, and CNC operators working in both job-shop and production-floor environments will find this tool appropriate for finish-reaming holes in the 0.1000 to 0.1499 inch diameter range.

Key Features

• Solid carbide construction for rigidity and wear resistance in precision reaming
• 0.1265 inch diameter with 0.0000 to 0.0002 inch tolerance for close-tolerance bore finishing
• 4-flute straight flute design for smooth, consistent material removal
• Right-hand cutting direction with bright, uncoated finish compatible with standard coolants
• Straight cylindrical shank for direct mounting in chucks and collet holders
• Compact 2.25 inch overall length suited for short-reach reaming setups

Compatibility

Designed as an OEM-style chucking reamer for use in standard drill chucks, collet chucks, and floating reamer holders accepting a straight cylindrical shank in the 0.1000 to 0.1499 inch diameter range.

Installation Notes

Chucking reamers are installed and operated by machinists and CNC operators following standard machine-shop practices. Ensure the workpiece and spindle are secured before engaging the reamer, and confirm proper chuck or collet grip on the straight shank before operation. Use appropriate cutting fluid for the workpiece material to extend tool life and improve surface finish. Never run a reamer in reverse, as this will damage the cutting edges.