Cleveland C57187 Spiral Point Tap M10x1.25 3 Flutes

M10×1.25 Spiral Point Tap

The Cleveland C57187 is a high-speed steel tap designed to cut M10 metric threads with a 1.25 mm pitch. Its spiral point geometry pushes chips ahead of the cut, making it suited for through-hole work on milling machines or rigid tapping heads. The bright, uncoated finish is standard for general-purpose ferrous and non-ferrous materials. Three flutes provide a balance of chip space and core strength for consistent thread quality.

Upgrade from Hand Taps

This machine tap replaces general-purpose hand taps when a shop moves from manual threading to CNC or power-driven operations. The D5 thread limit and 6H class of fit deliver tighter tolerance control than standard H-limit hand taps, reducing scrap on batch runs. The jump is worth it when cycle time and repeatability matter more than the lower upfront cost of carbon-steel hand tools. It requires a 0.3438 in drill for 75 percent thread engagement.

Sustained Production Behaviour

Under continuous machine use the high-speed steel body resists tempering better than carbon alternatives, holding cutting geometry through repeated holes. The spiral point ejects chips forward, preventing flute packing that can stall a tap in deep through-holes. With a 31.75 mm thread length and 74.61 mm overall length, it reaches standard depths without extension. Uncooked bright finish demands proper lubrication to avoid galling during long shifts.