Regal Cutting Tools 027613AS Spiral Flute Tap M5 X 0.80

Product Description

The REGAL CUTTING TOOLS 027613AS is a spiral flute tap designed for cutting M5 x 0.80 metric internal threads in a variety of materials. Built from high speed steel with a bright/uncoated finish, this bottoming tap features a 2-flute, right-hand spiral design with a 30-degree helix angle. The helix angle helps evacuate chips efficiently, making it well suited for through-hole and blind-hole threading applications. At 2.375 inches overall length with a 0.875-inch thread length, it fits standard tap holders and is used by machinists, tool and die makers, and maintenance technicians working in metalworking and manufacturing environments.

This tap is rated for use in aluminum, ductile iron, stainless steel, and stringy materials, covering a broad range of production and repair threading tasks. The bottoming chamfer style allows threading close to the bottom of blind holes where starter or plug taps cannot reach. With a 6H class of fit and D4 thread limit, the 027613AS produces threads within standard tolerance ranges for general-purpose metric fastener applications. It is appropriate for use in manual tap handles, CNC tapping cycles, and semi-automatic tapping heads where right-hand thread cutting is required.

Key Features

• M5 x 0.80 metric thread size with 6H class of fit and D4 thread limit for precise tolerance control
• Bottoming chamfer for threading to the bottom of blind holes
• 30-degree right-hand spiral flute for efficient chip evacuation in difficult materials
• High speed steel construction rated for aluminum, ductile iron, stainless steel, and stringy materials
• Bright/uncoated finish; no coolant-through requirement
• Medium flute style in REGAL Premium series for consistent performance

Compatibility

Designed for use in standard metric M5 x 0.80 tapping applications. Compatible with manual tap wrenches and machine tap holders accepting the 0.194-inch shank diameter and 0.152-inch square drive size. Suitable for threading aluminum, ductile iron, stainless steel, and stringy materials.

Installation Notes

This tap is installed by machinists or maintenance technicians using a properly sized tap wrench or machine holder. Ensure the workpiece is securely clamped and the pilot hole is drilled to the correct diameter for an M5 x 0.80 thread before tapping. Apply appropriate cutting fluid for the material being threaded. For CNC or machine tapping, verify spindle speed and feed rate are set for the material and tool type before engaging the tap.