Norseman Drill and Tool Type 21-AG Metric HSS Spiral Point Plug Taps

Norseman Type 21-AG Metric Spiral Point Taps

Precision Metric Threading with Gold Oxide Performance

The Norseman Drill and Tool Type 21-AG Metric Spiral Point Tap is engineered for fast, accurate internal threading in metric applications. Crafted from high-speed steel (HSS) and finished with a gold oxide coating, these taps deliver exceptional wear resistance, thermal stability, and smooth chip evacuation in production or maintenance environments.

Ideal for machine tapping through-holes, these gun-style spiral point taps are optimized for use in materials like carbon steel, alloy steel, stainless steel, and non-ferrous metals.

Gold Oxide Finish for Enhanced Performance

Lower Friction, Higher Durability

The gold oxide finish undergoes a low-temperature stress relief process that improves surface hardness, reduces friction, and increases lubricity. This enhances tap toughness and longevity, particularly in high-speed operations.

• Reduces galling and chip welding

• Improves cutting fluid retention for cooler operation

• Extends tool life under repeated use

Spiral Point Design for Efficient Chip Flow

Optimized for Through-Hole Tapping

The spiral point geometry drives chips ahead of the cutting action, preventing chip clogging and improving thread finish. This makes Type 21-AG taps ideal for high-speed CNC tapping or manual threading of through-holes.

• Ensures smooth, continuous cutting

• Reduces the risk of tap breakage

• Ideal for precision metric threading

Made in the USA for Global Applications

Manufactured in the USA to exacting standards, Norseman’s Type 21-AG Metric Spiral Point Taps are available in a wide range of standard metric thread sizes to support international manufacturing and maintenance requirements.

For superior metric threading performance, durability, and American-made quality—trust Norseman Type 21-AG Taps.