Hertel 79890414 Chucking Reamer 0.2210 in Solid Carbide

Product Description

The HERTEL 79890414 is a solid carbide chucking reamer designed to finish-size drilled or bored holes to a precise diameter. This reamer cuts at 0.2210 inches (Wire Size 2) with a tolerance of 0.0000 to 0.0002 inches, making it suitable for applications that demand tight hole accuracy. The straight-cylindrical shank seats securely in a drill chuck or collet, and the four-flute straight geometry provides clean, consistent stock removal. At 3 inches overall length with a 1-inch flute length, it is compact and rigid. Machinists and tool and die shops use this reamer in CNC machining centers, drill presses, and manual lathes where hole finish and dimensional control are critical.

This chucking reamer is suited for precision hole finishing in metalworking applications, including jig and fixture work, mold making, and general production machining. The bright, uncoated finish makes it appropriate for a range of base materials where a coated tool is not required. Its right-hand cutting direction follows standard rotation for most machine spindles. The solid carbide construction provides the rigidity needed for harder workpiece materials or situations where deflection must be minimized.

Key Features

• 0.2210 inch reamer diameter with a tolerance of 0.0000 to 0.0002 inches for tight dimensional control
• Solid carbide construction for rigidity and wear resistance in demanding materials
• Four-flute straight geometry for smooth, consistent stock removal
• Straight-cylindrical shank for direct chuck or collet mounting
• Bright, uncoated finish suitable for general metalworking applications
• Right-hand cut matches standard machine spindle rotation

Compatibility

Designed as an OEM-style precision chucking reamer for use in drill chucks, collet chucks, and floating holders on CNC and manual machining equipment accepting a straight-cylindrical shank at this diameter range.

Installation Notes

Installation and use should be performed by a qualified machinist. Power down and de-energize the machine spindle before mounting or removing the reamer. Verify chuck or collet concentricity before use, as runout directly impacts hole tolerance and tool life. Follow applicable shop safety standards and machine manufacturer guidelines for tool holding and speeds and feeds.