Dormer E557 HSS Spiral Flute Tap

This M8 spiral flute tap with 1.25mm pitch is a workhorse size for general engineering and fabrication applications. Commonly specified for structural brackets, automotive components, machinery assembly, and heavier fabrication work, this tap delivers dependable performance across professional and DIY threading tasks.

With an 8mm connection diameter and 72mm overall length, this tap provides excellent rigidity and control for creating quality threads in blind holes. The spiral flute configuration effectively manages chip removal even when cutting deeper threads, ensuring consistent performance throughout the threading operation.

Ideal for maintenance professionals, fabricators, automotive technicians, and serious home workshop enthusiasts who require reliable threading tools for steel and cast steel materials in blind hole applications.

Features and Benefits:
• Popular M8 size suitable for structural and general engineering work
• Three-flute spiral design ensures continuous chip evacuation
• Durable HSS construction for extended tool life
• Bright coating provides corrosion protection and reduced friction

Specifications:
Thread Diameter: M8
Type: Spiral Flute
Pitch: 1.25mm
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): 8mm
Overall length - millimeter (OAL): 72mm