HSS Spiral Point Taps (Gun Taps) – Optimized for Through Hole Threading

Why Spiral Point Taps Are the Best Choice for Through Holes

Spiral Point Taps (commonly called Gun Taps) are engineered to push chips forward ahead of the tap, making them the fastest and most efficient choice for through holes. Compared to straight flute taps, they allow 20–50% higher cutting speeds, reduce torque, and dramatically extend tool life in high-volume production.

Amony HSS Spiral Point Taps are made from premium M2, M35 (5% cobalt) or M42 (8% cobalt) high-speed steel, with TiN coating as standard. We offer three specifications that cover the majority of industrial needs:

1. HSS-E Spiral Point Taps, JIS Standard, TiN Coated, Coarse Pitch

Most popular model, JIS precision, coarse pitch for general steel, cast iron and alloy through holes.

2. HSS-E UNC Spiral Point Tap, TiN Coated

American Unified Coarse thread, ideal for US standard parts in automotive, machinery and structural steel.

3. HSS-E Long Shank Spiral Point Taps, TiN Coated

Extended shank (150–300 mm) for deep through holes in large workpieces, molds and heavy equipment.

All taps are available in machine and hand versions, sizes from M3 to M48 and 1/4"–2". TiAlN coating is optional for stainless steel and higher speeds.

Our Spiral Point Tap Models – Quick Comparison

Model	Standard	Thread Type	Best For	Key Feature
HSS-E JIS TiN Coarse Pitch	JIS	Metric Coarse	General through holes	Most popular, balanced performance
HSS-E UNC TiN Coated	UNC	Unified Coarse	US standard parts	American thread, high volume production
HSS-E Long Shank TiN Coated	Metric	Metric	Deep through holes	Long reach up to 300 mm