Walter-prototyp 5079028 Spiral Point Tap PG9 X 18

Product Description

The WALTER-PROTOTYP 5079028 is a spiral point tap designed to cut PG9 x 18 conduit threads in a single through-hole pass. Built from cobalt high-speed steel with a bright finish, it pushes chips forward ahead of the cutting zone, reducing chip packing in through-hole applications. The 4-flute plug configuration delivers a good balance of thread engagement and chip clearance. Overall length is 2.7559 inches with a thread length of 0.7874 inches, making it suitable for standard conduit thread depths. Licensed electricians and industrial machinists are the primary users of this tap.

This tap is intended for cutting PG (Panzergewinde) conduit thread forms, the metric-based thread standard used widely in European electrical enclosures and cable gland fittings. The PG9 size accommodates small-diameter cable glands and conduit entry points. It is used in production and maintenance environments where metric conduit fittings must be threaded into enclosure walls, junction boxes, or panel sheets. Right-hand thread direction is standard for this series.

Key Features

• Spiral point geometry pushes chips forward, suited for through-hole threading
• 4-flute design provides strong thread form and stable cutting action
• Cobalt HSS construction resists heat buildup in harder materials
• Bright finish suitable for use with cutting fluids
• Plug chamfer style eases starting alignment in through-hole applications
• Right-hand thread cutting direction, Series 27160

Compatibility

Designed for cutting PG9 x 18 conduit threads in through-hole applications using standard tapping chucks and CNC or hand-tapping setups. No additional compatible model numbers were specified in available product data.

Installation Notes

This tap should be installed in a properly sized tapping chuck or collet matching the 0.4724 inch (12.0 mm) shank diameter. Always apply an appropriate cutting fluid for the workpiece material before and during the tapping operation. Secure the workpiece fully before engaging the tap to prevent movement that can break the tool or produce off-angle threads. Follow your facility's standard machine safety lockout procedures when tapping on powered equipment.