Cleveland C54385 Hand Tap 12-24 Unc Taper Rh Hss

Product Description

The CLEVELAND C54385 is a 12-24 UNC straight-flute hand tap designed for cutting internal threads in both blind holes and through-holes. Manufactured from high speed steel (HSS) with a bright uncoated finish, this 4-flute tap delivers consistent thread quality in a wide range of materials. It features a taper chamfer, which eases entry and distributes cutting load across the leading threads, making it well suited for hand tapping operations or use in tapping fixtures. The overall length is 2-3/8 inches with a 1/2 inch thread length, and the right-hand thread direction conforms to standard UNC Class 2B and 3B fit tolerances at an H3 thread limit.

This tap is appropriate for threading operations in general metalworking, maintenance and repair, and light manufacturing environments. It performs in materials including alloy steel, carbon steel, aluminum, and free-machining stainless steel. The taper chamfer style makes it the first tap used in a standard hand-tapping sequence, starting a clean thread form before a plug or bottoming tap finishes the hole. At 0.06 pounds, it is compact enough for bench work and field repair use by machinists, maintenance technicians, and millwrights.

Key Features

• 12-24 UNC thread form, right-hand direction, H3 thread limit for consistent dimensional control
• Taper chamfer distributes cutting load for easier thread starting in blind and through-holes
• 4-flute straight-flute geometry provides chip control and stability during tapping
• High speed steel construction resists heat and wear across a range of workpiece materials
• Bright uncoated finish suitable for use with standard cutting oils and tapping fluids
• Class 2B and 3B fit tolerance coverage for general fastener and precision threading applications

Compatibility

Designed for blind hole and through-hole threading applications in alloy steel, carbon steel, aluminum, and free-machining stainless steel. Part of the CLEVELAND Series 1001 hand tap line.

Installation Notes

This tap is installed by machinists and maintenance technicians using a standard tap wrench or tapping fixture. Always secure the workpiece and ensure the tap is aligned perpendicular to the hole before applying torque to prevent tap breakage. Back the tap off periodically to break chips and apply a compatible cutting fluid to reduce heat and extend tool life. Follow applicable shop safety practices when working with hand taps in hardened or abrasive materials.