Regal Cutting Tools 015249AS Acme Thread Tap 1-8 Rh 2G

Product Description

The REGAL CUTTING TOOLS 015249AS is a straight-flute Acme thread tap designed for cutting 1-8 Acme threads in right-hand orientation. Built from high speed steel with a bright finish, this tap handles internal Acme thread forming in ferrous and non-ferrous workpieces. The plug chamfer style - with a moderate lead of 3 to 5 chamfered threads - suits through-hole and most blind-hole applications where a gradual thread engagement is preferred. With 4 straight flutes and a 29-degree thread angle conforming to Acme thread standards, this tap is a go-to tool for machinists, maintenance technicians, and toolroom professionals cutting power-transmission or lead-screw threads.

This tap is suited for production and repair work involving Acme threaded components such as lead screws, linear actuators, vises, and power transmission assemblies. The 1-8 designation indicates a 1-inch nominal diameter with 8 threads per inch. The 2G class of fit specifies a general-purpose tolerance appropriate for the majority of Acme thread applications where standard clearance and controlled fit are required. It is intended for use in manual or machine tapping operations by skilled machinists and maintenance trades.

Key Features

• 1-8 Acme thread form with a 29-degree thread angle for power-transmission thread cutting
• Plug chamfer provides a gradual lead-in suitable for through-holes and most blind-hole applications
• 4 straight flutes for chip clearance and thread formation stability
• High speed steel construction offers toughness and wear resistance across a range of workpiece materials
• Bright finish - no coating - allows direct inspection of the tool surface and suits general-purpose use
• 2G class of fit for standard general-purpose Acme thread tolerances

Compatibility

Designed as an OEM-style cutting tool for internal 1-8 Acme thread applications requiring a right-hand, 2G class of fit in standard through-hole or blind-hole configurations.

Installation Notes

Tap installation and use should be performed by a qualified machinist or maintenance technician familiar with Acme thread standards and tapping procedures. Always secure the workpiece and use appropriate tapping fluid or cutting oil for the base material before beginning the tapping operation. Ensure the tap is aligned perpendicular to the workpiece surface to avoid thread distortion or tap breakage. Back the tap out periodically to clear chips, particularly in deeper holes.