Value Collection SM24N03 Taper Pin Reamer No. 3 Hss

Product Description

The VALUE COLLECTION SM24N03 is a No. 3 taper pin reamer designed to enlarge, finish, and shape tapered holes to accept standard No. 3 taper pins. Ground from high-speed steel (HSS) with a bright, uncoated finish, this straight-flute reamer delivers consistent material removal on ferrous and non-ferrous workpieces. The small end diameter measures 0.1813 inches and the large end measures 0.2294 inches, producing a 1:48 taper rate consistent with ASME taper pin standards. Overall length is 3.6875 inches with a 2.3125-inch flute length and a 0.2344-inch straight shank. It is suited for machinists, toolroom technicians, and maintenance mechanics working in manual or light-duty machine setups.

This reamer is used in general-purpose hole finishing applications where a tapered hole must be sized to receive a standard taper pin for locating, locking, or aligning machine components. Typical applications include fitting taper pins in shaft collars, gear hubs, levers, and mechanical assemblies in maintenance, repair, and original equipment manufacturing environments. The right-hand cut geometry works with standard clockwise spindle rotation on manual drill presses, milling machines, and hand-held drilling equipment.

Key Features

• No. 3 taper pin size with 1:48 taper rate for ASME-standard taper pin fitment
• High-speed steel construction for durability across general-purpose cutting applications
• Straight flute geometry provides stable cutting action in through-holes and blind setups
• Bright, uncoated finish suitable for use with cutting fluid on a range of workpiece materials
• 0.2344-inch straight shank fits standard drill chucks and collets without adapters
• Right-hand cut direction compatible with standard clockwise spindle rotation

Compatibility

Designed as a general-purpose replacement and maintenance reamer for No. 3 taper pin applications in standard machine shop and industrial maintenance settings.

Installation Notes

This tool is installed by a machinist or maintenance mechanic using a drill press, milling machine, or hand drill with appropriate chuck or collet. Always secure the workpiece firmly before reaming and apply a suitable cutting fluid to extend tool life and improve finish quality. Use light, consistent feed pressure and avoid reversing the reamer under load, as reverse rotation can chip the cutting edges. Follow applicable shop safety procedures and machine manufacturer guidelines when operating rotating cutting tools.