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

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

TiAlN-Coated Performance for Hardened Steels & Cast Iron

The Norseman Drill & Tool Type 29-ALN Fractional HSS Reduced Neck Spiral Point Tap is engineered for high-performance threading in hard and abrasive materials where standard taps struggle. Designed specifically for fractional thread sizes, this tap combines advanced reduced-neck geometry with a Titanium Aluminum Nitride (TiAlN) coating to deliver superior durability, precision, and productivity in demanding machining environments.

High-Performance Reduced Neck Geometry

Lower Torque, Cooler Operation

The reduced neck design minimizes sidewall contact between the tap and the workpiece, significantly reducing friction and cutting torque. This allows for smoother engagement, improved stability, and cooler running temperatures—critical when machining hardened materials. Reduced torque also lowers the risk of tap breakage and improves overall thread quality in production and CNC operations.

Spiral Point Design for Efficient Chip Evacuation

Ideal for Through-Hole Applications

The spiral point (gun tap) geometry is optimized to push chips forward and out of the hole, preventing chip packing and re-cutting. This makes the Type 29-ALN especially effective for through-hole tapping, where clean chip evacuation is essential for consistent threads, faster cycle times, and extended tool life.

Titanium Aluminum Nitride (TiAlN) Coating

Built for Extreme Heat and Hard Materials

The TiAlN coating provides exceptional surface hardness and outstanding thermal resistance, making it ideal for threading hardened steels and cast iron up to 45 Rockwell C. Designed for high-temperature machining, TiAlN maintains edge strength, resists oxidation, and significantly extends tool life in high-speed and continuous-duty applications.

Premium HSS Construction for Industrial Reliability

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

Key Features

• Fractional thread sizes

• Reduced neck design for lower torque and improved stability

• Spiral point geometry for forward chip evacuation

• Titanium Aluminum Nitride (TiAlN) coating for hardened materials

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

For demanding threading applications in hard materials, Norseman Type 29-ALN Fractional Reduced Neck Spiral Point Taps deliver unmatched performance, durability, and reliability.