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

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

Norseman Drill & Tool Type 36-ACN Fractional Spiral Flute Semi-Bottoming Taps are engineered to deliver exceptional durability, precision, and chip control for demanding threading applications. Designed with a 30º helix angle and coated with Titanium Carbon Nitride (TiCN), these fractional-size taps provide superior performance and tool life when cutting threads in a wide variety of tough materials.

Titanium Carbon Nitride Coating for Maximum Wear Resistance

The advanced TiCN coating dramatically increases the surface hardness of the cutting edges, offering significantly enhanced resistance to wear, heat, and abrasion. This allows the tap to maintain sharp cutting geometry over extended use, reducing tool changes and increasing productivity. The low-friction properties of TiCN improve cutting efficiency, reduce torque, and produce cleaner, more accurate threads in both manual and CNC operations.

Optimized 30º Helix Angle for Efficient Chip Removal

Ideal for Blind and Through Holes

The 30º helix angle provides aggressive chip-lifting action, making these taps ideal for applications where chip evacuation is critical. Combined with the spiral flute design, the helix angle effectively draws chips out of the hole, preventing clogging and improving cutting performance. This geometry is especially effective in alloy steels, stainless steel, tool steels, and difficult-to-machine non-ferrous materials.

Semi-Bottoming Geometry for Precision Threading

Clean, Accurate Threads Near the Bottom of Blind Holes

Semi-bottoming taps offer the versatility to start easily while producing full-form threads close to the bottom of a blind hole. This makes them the preferred choice for applications requiring maximum thread depth without additional finishing operations.

Key Advantages

• TiCN coating increases cutting surface hardness for superior wear resistance

• 30º helix angle delivers efficient chip evacuation and reduced cutting torque

• Spiral flute design is ideal for threading blind or through holes

• Semi-bottoming configuration enables deep, accurate thread formation

• Fractional sizing ensures compatibility with standard inch-based machining

For machinists seeking high-performance fractional taps that deliver long tool life, cleaner threads, and excellent chip control, Norseman Type 36-ACN Spiral Flute Semi-Bottoming Taps set the standard for professional-grade threading.