Hertel 72403017 Taper Pin Reamer No 1 Hss 3 Flutes

Product Description

The HERTEL 72403017 is a No. 1 taper pin reamer designed for enlarging, finishing, and shaping tapered holes to accept standard taper pins. Manufactured from high-speed steel with a bright, uncoated finish, this tool delivers general-purpose performance across a range of machining applications. The reamer features a 1:48 taper rate, three helical flutes with a right-hand cut, and a straight shank measuring 0.1875 inches in diameter. Overall length is 2.9375 inches, with a flute length of 1.6875 inches. It is suited for use in manual and machine operations where precise taper pin fitment is required.

This reamer is used in metalworking environments where taper pins are employed to secure hubs, collars, and other mechanical components to shafts. The No. 1 pin size covers a small end diameter of 0.1447 inches and a large end diameter of 0.1798 inches, making it appropriate for light-duty assemblies in maintenance, repair, and production contexts. Machinists, toolroom technicians, and mechanical maintenance professionals are the primary users. Left-hand spiral flutes aid in chip evacuation while the right-hand cutting direction maintains conventional feed behavior.

Key Features

• No. 1 taper pin size with a 1:48 taper rate
• Small end diameter of 0.1447 inches and large end diameter of 0.1798 inches
• High-speed steel construction for general-purpose durability
• Three helical flutes with right-hand cut and left-hand spiral for efficient chip clearance
• Bright, uncoated finish suitable for standard machining conditions
• Straight shank at 0.1875 inches diameter for common chuck compatibility

Compatibility

Designed as a standard No. 1 taper pin reamer following conventional taper pin sizing, compatible with setups requiring a 1:48 taper rate for hole finishing and taper pin fitting operations.

Installation Notes

This reamer is installed and operated by machinists or mechanical maintenance technicians using a drill press, milling machine, or hand brace with an appropriate chuck. Secure the workpiece fully before reaming to prevent movement. Apply cutting fluid appropriate for the workpiece material to extend tool life and improve surface finish. Advance the reamer gradually with consistent pressure and avoid reversing the cut direction under load.