Norseman Drill & Tool Type 38-ACN Metric 30º Helix Angle Titanium Carbon Nitride Spiral Flute Semi-Bottoming Taps

Norseman Drill & Tool Type 38-ACN Metric 30º Helix Angle Titanium Carbon Nitride Spiral Flute Semi-Bottoming Taps

Norseman Drill & Tool Type 38-ACN Metric Spiral Flute Semi-Bottoming Taps are engineered for high-performance threading in demanding metalworking applications that require precision, durability, and superior chip evacuation. Featuring a 30º helix angle and a premium Titanium Carbon Nitride (TiCN) coating, these metric taps are built to deliver exceptional wear resistance and long-lasting cutting efficiency.

Titanium Carbon Nitride Coating for Maximum Hardness and Longevity

The advanced TiCN coating significantly increases surface hardness, providing outstanding resistance to abrasion, galling, and heat. This enhanced durability allows the tap to maintain sharp cutting edges over prolonged use, making it ideal for high-production environments. Lower friction at the cutting surface ensures smoother cutting action, reduced heat buildup, and improved thread quality—especially when tapping harder steels, stainless alloys, and abrasive materials.

Optimized 30º Helix Angle for Efficient Chip Removal

Ideal for Blind and Through Holes

The 30º helix angle provides an optimal balance of cutting aggressiveness and chip control. This geometry, combined with the spiral flute design, efficiently lifts chips out of the hole, preventing clogging and minimizing the risk of tool breakage. This makes the Type 38-ACN tap an excellent choice for tapping blind holes, deep holes, and applications where chip evacuation is critical to maintaining precision and tool life.

Semi-Bottoming Style for Versatile Threading

Clean Threads Closer to the Bottom

Semi-bottoming taps are engineered to produce nearly full-depth threads close to the bottom of a blind hole while still offering easy starting capability. This versatility makes them suitable for a wide range of precision metric threading applications.

Key Advantages

• TiCN coating increases surface hardness and extends tool life

• 30º helix angle ensures efficient chip evacuation and reduced torque

• Spiral flute design ideal for blind and deep hole tapping

• Semi-bottoming geometry produces clean, accurate threads

• Metric sizing for compatibility with global manufacturing standards

Norseman Type 38-ACN Spiral Flute Semi-Bottoming Taps deliver the durability, precision, and efficiency required for modern machining environments—making them a top choice for high-performance metric threading.