Cleveland C57055 Spiral Point Tap M3x0.5 Plug 6H Hss

Product Description

The CLEVELAND C57055 is a spiral point tap designed for through-hole threading in M3 x 0.5 metric coarse thread applications. It is ground from high speed steel (HSS) with a bright uncoated finish and a plug chamfer for standard starting performance. The tap features 2 flutes and a D3 thread limit with a 6H class of fit, making it suitable for threading steel and non-ferrous metals to tight metric tolerances. With an overall length of 1.9375 inches and a thread length of 0.3125 inches, this is a compact tool built for production and maintenance threading operations. Machinists, toolroom technicians, and maintenance professionals install this tap in manual or CNC tapping applications.

The C57055 is designed for through-hole threading in metric coarse applications across a wide range of materials including steel and non-ferrous metals. It is commonly used in machine shops, production facilities, and maintenance environments where M3 x 0.5 metric coarse threads are required. The right-hand spiral point geometry pushes chips forward ahead of the cutting zone, reducing chip packing in through-hole operations and improving thread quality in higher-volume tapping runs.

Key Features

• Spiral point geometry pushes chips forward, optimized for through-hole threading
• M3 x 0.5 metric coarse thread with 6H class of fit and D3 thread limit
• 2-flute design in high speed steel with bright uncoated finish
• Plug chamfer for standard entry and threading initiation
• Right-hand thread direction, compatible with standard tapping equipment
• Rated for threading in steel and non-ferrous metal workpieces

Compatibility

Designed as a direct-fit spiral point tap for M3 x 0.5 metric coarse through-hole threading applications in steel and non-ferrous metals. Compatible with standard tap holders and tapping heads sized for a 0.1410 inch shank diameter.

Installation Notes

This tap should be installed by a qualified machinist or maintenance technician using a properly sized tap holder or chuck. Ensure the workpiece is secured before tapping and that the correct cutting fluid or lubricant is applied for the material being threaded. Inspect the tap for wear or chipping before each use, and never reverse a broken tap without proper extraction tooling. Follow applicable shop safety and machine guarding procedures during all tapping operations.