Cleveland C57253 Spiral Point Tap M20 X 2.5 Metric Coarse

Product Description

The CLEVELAND C57253 is a spiral point tap designed for threading through-holes in metric coarse applications. Built from high speed steel with a bright finish, it cuts an M20 x 2.5 thread to a 6H class of fit with a D7 thread limit. The plug chamfer style makes it well suited for through-hole work where the tap can advance chips forward ahead of the cutting zone. With a 2.0 inch thread length and an overall length of 3.813 inches, it fits standard tap holders used by machinists and maintenance technicians in production and repair settings.

This tap is designed for through-hole threading operations in alloy steel, carbon steel, and aluminum. The 3-flute spiral point geometry pushes chips forward through the hole, reducing chip packing and improving thread quality in these materials. It carries a right-hand thread direction and does not require coolant-through tooling, making it compatible with conventional tapping heads and CNC rigid-tapping setups where external cutting fluid is applied at the tool interface.

Key Features

• M20 x 2.5 metric coarse thread form with 6H class of fit and D7 thread limit
• Spiral point geometry pushes chips forward for clean through-hole threading
• 3-flute design in high speed steel for use in alloy steel, carbon steel, and aluminum
• Plug chamfer style for standard through-hole entry and thread lead-in
• Bright finish with no coating for straightforward resharpening in shop environments
• Right-hand thread direction; no coolant-through required

Compatibility

Designed for through-hole threading in alloy steel, aluminum, and carbon steel workpieces requiring an M20 x 2.5 metric coarse thread to 6H tolerance. Part of the CLEVELAND Series 1011 spiral point tap line.

Installation Notes

Installation is performed by machinists or maintenance technicians using a calibrated tap holder, tapping head, or CNC rigid-tapping program set to the correct M20 x 2.5 pitch. Secure the workpiece fully before tapping and confirm spindle alignment to avoid tap breakage or thread form error. Apply cutting fluid appropriate to the workpiece material before and during the tapping operation. Follow shop safety procedures for rotating tooling and secure all guarding before machine operation.