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

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

TiAlN-Coated Performance for Hardened Steels & Cast Iron

The Norseman Drill & Tool Type 29-ALN Machine Screw HSS Reduced Neck Spiral Point Tap is engineered for high-performance threading in hard-to-machine materials, delivering exceptional durability, accuracy, and productivity. Designed for machine screw thread applications, this tap combines advanced reduced-neck geometry with a Titanium Aluminum Nitride (TiAlN) coating to excel where standard taps fall short.

High-Performance Reduced Neck Design

Lower Torque, Cooler Cutting, Greater Stability

The reduced neck profile minimizes contact between the tap body and the workpiece, reducing friction and cutting torque. This design allows the tap to run cooler at higher speeds while improving chip flow and thread consistency. The result is enhanced tool stability, improved thread quality, and reduced risk of tap breakage—especially important when machining hardened materials.

Spiral Point Geometry for Efficient Chip Control

Optimized for Through-Hole Threading

Featuring a spiral point (gun tap) design, the Type 29-ALN pushes chips forward and out of the hole, preventing chip packing and edge damage. This makes it ideal for through-hole machine screw threading in production and CNC environments where consistent chip evacuation is critical for efficiency and tool life.

Titanium Aluminum Nitride (TiAlN) Coating

Built for High Heat and Extreme Hardness

The TiAlN coating provides extreme surface hardness and exceptional thermal resistance, making it ideal for threading hardened steels and cast iron up to 45 Rockwell C. Designed to perform at elevated cutting temperatures, TiAlN maintains edge integrity, reduces oxidation, and significantly extends tool life in high-speed and continuous-duty operations.

Premium HSS Construction for Industrial Reliability

Manufactured from high-quality High-Speed Steel (HSS), the Type 29-ALN tap delivers the toughness required for demanding industrial use while maintaining precise thread geometry and consistent performance.

Key Features

• Machine screw thread sizes

• Reduced neck design for lower torque and cooler operation

• Spiral point geometry for forward chip evacuation

• Titanium Aluminum Nitride (TiAlN) coating for hardened materials

• Ideal for hardened steels and cast iron up to 45 Rockwell C

For aggressive threading in tough materials, Norseman Drill & Tool Type 29-ALN Reduced Neck Spiral Point Taps deliver the strength, heat resistance, and reliability professionals demand.