Norseman Drill & Tool HSS Spiral Flute Semi-Bottoming Taps
Norseman Drill & Tool HSS Spiral Flute Semi-Bottoming Taps
Norseman Drill & Tool HSS Spiral Flute Semi-Bottoming Taps are precision-engineered threading tools designed for clean, accurate, and efficient internal thread cutting in a wide range of metals. Built from premium high-speed steel (HSS) and featuring advanced right-hand spiral flute geometry, these taps provide professional machinists and fabricators with exceptional cutting performance and long-lasting durability.
Right-Hand Hi-Helix Flutes for Superior Chip Evacuation
The defining feature of these taps is their right-hand hi-helix spiral flute design, which produces a shearing action that effortlessly lifts chips out of the hole during tapping. This improved chip evacuation reduces friction, minimizes heat buildup, and prevents chip re-cutting—crucial advantages when threading deep, blind, or hard-to-reach holes. The result is smoother operation, reduced torque, and cleaner, more accurate threads.
Ground Thread Precision for Industrial-Grade Accuracy
Each tap is crafted with ground thread construction to ensure tight tolerances, sharp cutting edges, and consistent thread quality. The high-speed steel composition provides excellent toughness and wear resistance, making these taps ideal for threading stainless steel, alloy steel, cast iron, aluminum, and other common industrial materials.
Versatile Semi-Bottoming Design for Plug or Bottoming Use
Norseman’s semi-bottoming style offers the versatility to function as both a plug tap and a bottoming tap, giving operators flexibility across various tapping requirements. With a lead that is shorter than a plug tap but longer than a true bottoming tap, this design makes it possible to thread closer to the bottom of a blind hole while still maintaining smooth, controlled cutting.
Built for Professional Performance
From machine shops to maintenance operations, Norseman HSS Spiral Flute Semi-Bottoming Taps deliver dependable performance, superior thread quality, and long tool life. For applications requiring precision threading with reliable chip evacuation, Norseman remains the industry’s trusted choice.
