Norseman Drill & Tool Type 29-ALN Metric HSS Gold Oxide High Performance Reduced Neck Spiral Point Taps

Norseman Drill & Tool Type 29-ALN Metric Reduced Neck Spiral Point Taps

TiAlN-Coated Performance for Hardened Steels & Cast Iron

The Norseman Drill & Tool Type 29-ALN Metric HSS Reduced Neck Spiral Point Tap is engineered for high-performance threading in hard-to-machine materials where durability, accuracy, and heat resistance are critical. Designed for metric thread applications, this premium tap combines advanced reduced neck geometry with a Titanium Aluminum Nitride (TiAlN) coating, making it ideal for hardened steels and cast iron up to 45 Rockwell C.

Reduced Neck Geometry for Lower Torque

Cooler Cutting and Improved Stability

The high-performance reduced neck design minimizes contact between the tap body and the workpiece, significantly reducing friction and cutting torque. This results in smoother tapping, improved dimensional accuracy, and cooler operation—especially important when working with hardened materials. Lower torque also reduces tap breakage and improves consistency in CNC and production environments.

Spiral Point Design for Efficient Chip Control

Optimized for Through-Hole Tapping

The spiral point (gun tap) geometry is designed to push chips forward and out of the hole, preventing chip buildup and re-cutting. This ensures clean, uniform threads while increasing cutting speeds and reducing downtime. The design makes the Type 29-ALN an excellent choice for through-hole applications in hardened steels and abrasive alloys.

Titanium Aluminum Nitride (TiAlN) Coating

Built for High Heat and Hard Materials

The TiAlN coating delivers extreme surface hardness and superior thermal stability. It excels in high-temperature operations, maintaining cutting edge integrity while resisting wear and oxidation. This coating is specifically recommended for threading hardened steels, cast iron, and other difficult materials up to 45 Rc, providing significantly longer tool life compared to uncoated or standard-coated taps.

Precision Metric Threading You Can Trust

Manufactured from premium High-Speed Steel (HSS), Norseman Type 29-ALN metric taps deliver the strength, toughness, and accuracy required for demanding industrial applications.

Key Features

• Metric thread sizes

• Reduced neck design for lower torque and improved tool life

• Spiral point geometry for efficient forward chip evacuation

• Titanium Aluminum Nitride (TiAlN) coating for hardened materials

• Designed for steels and cast iron up to 45 Rockwell C

For precision metric threading in extreme conditions, Norseman Type 29-ALN Reduced Neck Spiral Point Taps deliver unmatched performance and reliability.