Norseman Drill & Tool 30º Helix Angle Spiral Flute Semi-Bottoming Taps

Norseman Drill & Tool 30º Helix Angle Spiral Flute Semi Bottoming Taps

Norseman Drill & Tool 30º Helix Angle Spiral Flute Semi Bottoming Taps are engineered for precision, efficiency, and superior chip evacuation in demanding tapping applications. Built for professionals who require consistent performance across a wide range of materials, these taps combine advanced geometry with rugged construction to deliver reliable threading in both blind and through holes.

Optimized 30º Helix Angle for Superior Chip Control

The 30º helix angle is specifically designed for jobs where chip disposal poses a challenge. By creating a more aggressive cutting action, this helix angle efficiently lifts and clears chips from the hole—preventing clogging, reducing torque, and extending tool life. Whether tapping deep blind holes or fast-cutting through holes, the optimized helix angle keeps the threads clean and sharp throughout the operation.

Spiral Flute Design for Efficient Chip Removal

Ideal for Blind and Through Holes

The spiral flute configuration enhances chip flow by pulling chips upward and out of the cutting path. This design makes the semi bottoming tap especially effective in enclosed spaces where chip packing can lead to tool breakage or thread damage. It is recommended for tapping in a wide variety of materials, including steel, stainless steel, aluminum, cast iron, and non-ferrous alloys.

Semi Bottoming Geometry for Versatile Threading

Reliable Starts and Clean Finishes

Semi bottoming taps are engineered to start easily while producing nearly full-form threads close to the bottom of a blind hole. This makes them a versatile choice for manufacturers, machinists, and fabricators who require tight tolerances and clean, accurate thread profiles without excessive finishing.

Key Advantages

• 30º helix angle improves chip evacuation and reduces cutting torque

• Spiral flute design draws chips away from the cutting zone

• Ideal for blind holes, through holes, and varied material types

• Produces clean, precise threads with minimal risk of chip packing

For shops seeking dependable threading performance and superior chip control, Norseman 30º Helix Angle Spiral Flute Semi Bottoming Taps deliver professional-grade results every time.