Norseman Drill & Tool 52º Helix Angle Spiral Flute Semi-Bottoming Taps

Norseman Drill & Tool 52º Helix Angle Spiral Flute Semi-Bottoming Taps

Norseman Drill & Tool 52º Helix Angle Spiral Flute Semi-Bottoming Taps are engineered for precision threading in soft, ductile materials where deep tapping and clean chip evacuation are essential. Designed for machinists and manufacturers who require exceptional control and accuracy, these taps deliver superior performance in copper, brass, aluminum, and similar non-ferrous materials.

High-Performance 52º Helix Angle for Soft Materials

The aggressive 52º helix angle provides rapid chip lifting action, making it ideal for tapping deep holes in materials that tend to form long, stringy chips. This steep helix angle reduces cutting pressure, improves chip flow, minimizes clogging, and ensures smoother, cleaner threads. Because of its advanced geometry, the tap can be used for both plug and bottoming applications, offering unmatched versatility.

Spiral Flute Design for Deep, Clean Threading

Optimal for Blind and Deep Holes

The spiral flute design works in tandem with the 52º helix angle to continuously pull chips up and out of the hole. This dramatically reduces the risk of chip packing—one of the most common causes of tap breakage—especially when working in soft ductile materials. The result is improved tool life, reduced downtime, and consistent high-quality threads.

Semi-Bottoming Geometry for Maximum Reach

Perfect for Near-Bottom Threading

Semi-bottoming taps are engineered to cut threads closer to the bottom of a blind hole than traditional plug taps. This makes the Norseman 52º semi-bottoming tap an excellent choice for precision applications where full thread depth is required without compromising accuracy or finish quality.

Key Advantages

• 52º helix angle ideal for copper, brass, aluminum, and ductile materials

• Versatile for plug or bottoming applications

• Spiral flute design ensures efficient chip removal in deep holes

• Semi-bottoming geometry allows threading close to the bottom of blind holes

• Reduced cutting pressure and smoother thread formation

For superior threading performance in soft materials, Norseman 52º Helix Angle Spiral Flute Semi-Bottoming Taps deliver the precision, versatility, and reliability professionals demand.