Goliath 4 x 0.5mm MF Spiral Flute HSS-Co5 Tap - A35XEF2
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Goliath is an Australian precision cutting tool brand supplying HSS taps, threading dies, tap and die sets, thread gauges, and key steel to engineering, manufacturing, maintenance, and toolmaking operations across Australia. This page covers the Goliath Metric Fine (MF) Spiral Flute HSS-Co5 Tap, available in 11 diameter options: 4mm, 5mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm and 3 more.
Goliath HSS-Co5 cobalt spiral flute machine taps cut internal threads in blind holes at speed, ejecting chips upward for clean, uninterrupted cutting.
Where this product is used
Goliath spiral flute machine tap products are used across engineering workshops, production machining, and industrial maintenance programs.
- Tapping blind holes at machine speeds where chip ejection is critical.
- CNC and production tapping of ductile materials including aluminium, mild steel, and stainless steel.
- High-speed internal threading where chip packing would otherwise cause tap breakage.
Key specifications
| Specification | Detail |
|---|---|
| Material Grade | HSS-Co5 Cobalt |
Selecting the right option
Spiral flute taps suit blind-hole tapping — the spiral ejects chips upward, preventing chip packing. HSS-Co5 cobalt grade suits stainless steel, titanium, and difficult materials at machine speeds. Use a titanium nitride (TiN) coated tap for improved surface finish and tool life in production runs.
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Goliath Metric Fine (MF) Spiral Flute HSS-Co5 Tap: 4mm / 0.5mm
SKU: A0198369 | Model: A35XEF2
This is the diameter 4mm, pitch 0.5mm option of the Goliath Metric Fine (MF) Spiral Flute HSS-Co5 Tap. Key details for this option: thread form type Metric Fine, drill diameter 3.5mm, length overall 53mm.
Goliath Metric Fine (MF) Spiral Flute HSS-Co5 Tap
HSS-Co (Cobalt) Bright Finish Metric Fine Spiral Flute Machine Tap.
HSS-Co Spiral Flute Taps.
Spiral Flute taps are designed primarily for machine tapping of blind holes.
They are used to the best advantage in materials that produce long continuous chips.
The right hand spiral forces the swarf out of the hole and prevents the chips from clogging at the bottom of the hole or in the flutes, which could cause tap breakage or spoiled threads.
The metric Fine angle of thread is 60 degrees.
The crest is flat and the thread has clearance at the root allowing external thread and internal thread to engage well.
A Larger root radius and lower thread height enable easy screw thread processing and increase thread screw strength.
The major diameter of external thread and pitch are specified by a simple numerical value (most commonly measured in millimetres).
Manufactured from HSS-Co5.