Regal Cutting Tools 015010AS Acme Thread Tap 1-5 4 Flute

Product Description

The REGAL CUTTING TOOLS 015010AS is a straight-flute Acme thread tap designed to cut internal Acme threads in ferrous and non-ferrous workpieces. Built from high-speed steel with a bright finish, it delivers consistent thread geometry for power-transmission applications where square or trapezoidal thread profiles are required. The tap features a 1-5 thread size designation, a 29-degree thread angle, and a plug chamfer that distributes cutting load across several leading threads, making it suitable for through-hole tapping operations. At 10.125 inches overall length, it provides adequate reach for deeper bores without requiring extension tooling. Installation is performed by qualified machinists or toolroom technicians.

This tap is used in machine shop, maintenance, and repair environments where Acme threaded components such as lead screws, jacks, vises, and linear actuators require new or restored internal threads. The 2G class of fit indicates a general-purpose tolerance suitable for most commercial Acme thread assemblies. The right-hand thread direction is standard for the majority of power-transmission applications. Straight flutes make this tap well suited to cutting softer materials and short-chipping metals where chip evacuation is not a primary concern.

Key Features

• 1-5 Acme thread size with 29-degree thread angle for accurate power-transmission thread profiles
• Plug chamfer distributes cutting force over multiple leading threads, reducing tap breakage risk in through-hole applications
• 4 straight flutes provide rigidity and efficient chip clearance in short-chipping materials
• High-speed steel construction offers good wear resistance and toughness across a range of workpiece materials
• Bright finish with no coating, suitable for use with standard tapping fluids and oils
• 2G class of fit meets general-purpose commercial Acme thread tolerance requirements
• 10.125-inch overall length provides reach for deeper bore applications

Compatibility

Designed for cutting 1-5 right-hand Acme internal threads to a 2G class of fit in through-hole applications. Consult thread standards and workpiece material specifications to confirm suitability before use.

Installation Notes

Acme thread taps of this size should be installed and operated by qualified machinists using a properly aligned tapping head or rigid machine setup to prevent tap breakage and thread-form error. Ensure the workpiece is securely fixtured and that the correct pilot hole diameter for a 1-5 Acme thread is drilled before tapping. Apply an appropriate cutting fluid or tapping compound for the workpiece material, and clear chips frequently during the tapping cycle. Never apply excessive axial force - allow the tap to advance at its natural thread pitch rate.