Cleveland C24242 No. 7 Taper Pin Reamer Hss

Product Description

The CLEVELAND C24242 is a No. 7 taper pin reamer designed for precision hole enlarging, finishing, and shaping in metalworking applications. Manufactured from high-speed steel (HSS) with a bright, uncoated finish, this reamer features a helical flute design and right-hand cutting direction. The small end diameter measures 0.3297 inches and the large end measures 0.4220 inches, conforming to the 1:48 taper rate standard for No. 7 taper pins. Overall length is 6.3125 inches with a flute length of 4.4375 inches. Machinists and maintenance technicians rely on this tool for accurate taper pin hole preparation in shafts, hubs, and mechanical assemblies.

This reamer is suited for general-purpose use on aluminum, steel, and steel alloy workpieces. Typical applications include preparing taper pin holes in mechanical power transmission components, machine tool repair, and precision assembly work. The straight shank measures 13/32 inches (0.4063 inches decimal) and fits standard drill chucks and collet holders used in milling machines, drill presses, and hand drilling operations. It is part of the CLEVELAND Series 650 taper pin reamer line.

Key Features

• No. 7 taper pin size with a 1:48 taper rate conforming to ASME taper pin standards
• High-speed steel construction for durability across aluminum, steel, and steel alloy materials
• Helical flute geometry for smoother cutting and improved chip evacuation
• Right-hand cutting direction with left-hand spiral for reduced chatter and improved finish
• Bright, uncoated finish suitable for general-purpose machining environments
• Straight shank for compatibility with standard drill chucks and collet holders

Compatibility

Designed for use with No. 7 standard taper pins in aluminum, steel, and steel alloy workpieces. Suitable for general-purpose hole enlarging, finishing, and shaping operations where a 1:48 taper is required.

Installation Notes

Installation and use of this reamer should be performed by qualified machinists or maintenance technicians familiar with reaming operations. Secure the straight shank firmly in a drill chuck or collet before use, and ensure the workpiece is properly fixtured to prevent movement. Apply cutting fluid appropriate for the workpiece material to extend tool life and improve surface finish. Do not exceed recommended feed rates for HSS tooling on the material being machined.