Cleveland C54929 Hand Tap 1-12 Unf Plug 4-flute Hss

Product Description

The CLEVELAND C54929 is a 1-12 UNF straight-flute hand tap designed for cutting internal threads in metalworking applications. Built from high-speed steel (HSS) with a bright, uncoated finish, it runs a 4-flute, plug-chamfer geometry that balances thread-starting ease with cutting efficiency. The plug chamfer provides a gradual lead-in, making it suitable for both blind-hole and through-hole threading operations. At 5.125 inches overall length with a 2.5-inch thread length, this tap is sized for production and maintenance threading tasks handled by machinists, toolmakers, and skilled tradespeople working in machine shops or field maintenance environments.

This tap is intended for threading operations in alloy steel, aluminum, carbon steel, and free-machining stainless steel. Its 3B class of fit and H4 thread limit deliver a controlled tolerance suitable for standard fastener engagement. The right-hand, 1-12 UNF thread form is common in precision mechanical assemblies, automotive components, and industrial equipment where fine-pitch threads are required. It is part of Cleveland Series 1002 and is sold individually.

Key Features

• Plug chamfer geometry supports both blind-hole and through-hole threading
• 4-flute straight-flute design for efficient chip handling in a range of metals
• High-speed steel construction provides durability across common ferrous and non-ferrous materials
• Bright, uncoated finish maintains consistent tool dimensions for precise H4 thread limit tolerance
• 3B class of fit suits standard threaded fastener assemblies
• Right-hand cutting, 1-12 UNF thread form for fine-pitch applications

Compatibility

Designed for threading alloy steel, aluminum, carbon steel, and free-machining stainless steel workpieces requiring a 1-12 UNF internal thread at a 3B class of fit.

Installation Notes

This tap is installed by machinists or maintenance technicians using a standard tap wrench or appropriate machine holder. Always ensure the workpiece is securely fixtured before threading. Apply cutting fluid appropriate for the workpiece material to reduce tool wear and improve thread finish. For blind-hole applications, verify hole depth provides adequate clearance beyond the intended thread length before tapping.