Norseman Drill & Tool Type 36-AGN Fractional 30º Helix Angle Titanium Nitride Spiral Flute Semi-Bottoming Taps

Norseman Drill & Tool Type 36-AGN Fractional 30º Helix Angle Titanium Nitride Spiral Flute Semi-Bottoming Taps

Norseman Drill & Tool Type 36-AGN Fractional Spiral Flute Semi-Bottoming Taps are engineered for professional machinists who require clean threads, efficient chip control, and extended tool life across a wide range of materials. Featuring a 30º helix angle and a premium Titanium Nitride (TiN) coating, these taps deliver superior performance in both manual and CNC threading applications.

Titanium Nitride Coating for Enhanced Lubricity and Hardness

The TiN coating significantly boosts surface hardness while reducing friction at the cutting edge. This combination improves chip flow, enhances finish quality, and minimizes heat buildup—allowing the tool to maintain its sharpness longer. As a result, operators benefit from prolonged tap life, fewer tool changes, and more consistent thread quality, even in abrasive or high-speed applications.

Optimized 30º Helix Angle for Superior Chip Removal

Ideal for Blind and Through Hole Applications

The 30º helix angle provides a balanced cutting geometry that effectively lifts chips out of the hole. This prevents clogging, reduces torque, and ensures smoother, more stable cutting action. When paired with the spiral flute design, the tap excels at clearing chips in blind holes, reducing the risk of breakage and producing clean, accurate threads in materials such as steel, aluminum, brass, stainless alloys, and non-ferrous metals.

Semi-Bottoming Design for Near-Bottom Threading

Precision Threads in Tight Spaces

Semi-bottoming taps are engineered to produce nearly full-depth threads close to the bottom of a blind hole. This versatility makes them suitable for applications requiring precise thread engagement without extensive secondary finishing.

Key Advantages

• TiN coating increases hardness and lubricity for smoother cutting

• Improves chip flow and enhances thread finish quality

• 30º helix angle ensures efficient chip evacuation

• Spiral flute geometry ideal for blind or through holes

• Fractional sizing fits standard inch-based machining setups

• Extended tool life and improved threading consistency

For machinists seeking reliability, efficiency, and professional-grade threading performance, the Norseman Type 36-AGN TiN Spiral Flute Semi-Bottoming Tap is a premium solution that delivers exceptional results across a broad range of materials and applications.