Magafor 88860004770 Chucking Reamer 0.1878 in Carbide

Product Description

The MAGAFOR 88860004770 is a solid carbide chucking reamer designed for precise hole finishing in machining and toolroom applications. With a cutting diameter of 0.1878 inches (4.77 mm) and a diameter tolerance of 0.0000 to +0.0004 mm, this reamer delivers tight, consistent bore sizing in a single pass. The six-flute, left-hand spiral geometry with right-hand cutting direction provides smooth chip evacuation and stable cutting action. The bright polished finish reduces friction and buildup on the cutting edges. It fits standard drill press, CNC, and manual milling machine chucks via its straight shank.

This chucking reamer is suited for finishing pre-drilled or bored holes to close tolerances in ferrous and non-ferrous materials. At 3-25/64 inches overall length with a 29/32-inch flute length, it is sized for general-purpose toolroom and production work where sub-0.2-inch bore diameters require accurate final sizing. Machinists, tool and die makers, and CNC operators working in job shop, maintenance, or production environments will find this reamer appropriate for applications demanding repeatable hole quality.

Key Features

• Solid carbide construction for rigidity and wear resistance in demanding bore-finishing applications
• 0.1878-inch (4.77 mm) cutting diameter with a tolerance of 0.0000 to +0.0004 mm for precise final sizing
• Six-flute, left-hand spiral geometry promotes smooth chip flow and reduces chatter
• Right-hand cutting direction compatible with standard machine spindle rotation
• Bright polished finish minimizes built-up edge and eases chip release
• Straight shank fits ER collets, drill chucks, and standard toolholders without additional adapters

Compatibility

Designed as an OEM-style replacement or direct toolroom addition for machines accepting straight-shank reamers in the 0.1500 to 0.1999-inch diameter range.

Installation Notes

Chucking reamers are installed by machinists or toolroom technicians. Always ensure the machine spindle is fully stopped and the chuck or collet is clean and free of chips before seating the shank. Run the reamer at manufacturer-recommended speeds for solid carbide tooling and apply appropriate cutting fluid for the workpiece material. Never use a reamer to remove more stock than the pre-drill allowance permits, as overloading flutes can cause premature wear or chipping.