Dormer E557 HSS Spiral Flute Tap

This M4 spiral flute tap with 0.7mm pitch is an excellent choice for light engineering and general-purpose threading applications. Commonly required for electrical fittings, small machinery components, enclosures, and mounting brackets, this size strikes an ideal balance between precision and versatility.

The 4mm connection diameter and 53mm overall length provide comfortable handling and good control during threading operations. The spiral flute configuration ensures reliable chip removal from blind holes, particularly important when power tapping where continuous operation demands efficient chip evacuation.

Suitable for both trade professionals working on control panels, light fabrication, and instrumentation, as well as DIY enthusiasts undertaking workshop projects and home improvements.

Features and Benefits:
• Versatile M4 size for common threading applications
• HSS material delivers consistent performance and tool life
• Three spiral flutes maintain clean cutting action in blind holes
• Bright coating reduces friction for smoother operation

Specifications:
Thread Diameter: M4
Type: Spiral Flute
Pitch: 0.7mm
Product measurement standard: Metric
Material code (BMC): HSS
Basic standard group (BSG): ISO 529
Coating: Bright
Usable length (ULDR): 2
Flute count (NOF): 3
Tap Application: Blind Hole
Tap chamfer style (TCS): C 2 - 3
Thread form (THFT): M - Metric coarse
Material Application Priority Usage: P - Steel and cast steel (steels with alloy content = 10% and a hardness of < 45HRC)
Package Quantity: 1
Country of origin: India
Connection diameter - millimeter (DCON MS): 4mm
Overall length - millimeter (OAL): 53mm