Magafor 88860001070 Chucking Reamer 0.042 in Solid Carbide

Product Description

The MAGAFOR 88860001070 is a solid carbide chucking reamer designed for precision hole finishing in tight-tolerance machining applications. With a 0.042 inch diameter and a diameter tolerance of 0.0000 to +0.0003 inches, this reamer is built for work where bore accuracy is critical. The straight shank allows direct mounting in standard drill chucks or collets, and the bright polished finish reduces friction during cutting. Four spiral flutes with a left-hand spiral and right-hand cutting direction clear chips efficiently in through-hole and blind-hole applications. Machinists and tool-and-die professionals working in precision shops are the primary installers of this tool.

This reamer is suited for small-diameter precision reaming in metals and hard materials where dimensional accuracy is required. The 0.042 inch diameter corresponds to a wire gauge size of approximately number 58, making it appropriate for finishing holes in instrument components, small mechanical assemblies, and close-tolerance fixtures. The 1-9/16 inch overall length and 25/64 inch flute length are sized for shallow finish passes on small bores in both production and jobsite machining environments.

Key Features

• 0.042 inch diameter with a tolerance of 0.0000 to +0.0003 inches for tight bore control
• Solid carbide construction for hardness, wear resistance, and dimensional stability
• Four spiral flutes with left-hand spiral geometry for efficient chip evacuation
• Right-hand cutting direction compatible with standard machine spindle rotation
• Bright polished finish reduces cutting friction and aids chip flow
• Straight shank for direct chucking in collets or standard drill chucks

Compatibility

Designed as an OEM-style precision reamer for use in standard chucking setups on CNC machining centers, drill presses, and manual mills where a straight-shank tool is accepted.

Installation Notes

Installation and use of this reamer is performed by machinists and tool-and-die technicians on machine tools. Ensure the machine spindle and workpiece are fully secured before engaging the reamer. Run the reamer at appropriate cutting speeds for carbide tooling in the workpiece material, and use cutting fluid to extend tool life and maintain bore finish. Do not use this reamer as a drill; it is designed for finish reaming of pre-drilled holes only.