Guhring 9039360030000 M3x0.50 Cobalt Machine Tap

Product Description

The GUHRING 9039360030000 is a straight-flute cobalt machine tap designed for threading M3x0.50 metric coarse holes in demanding materials. The modified bottoming chamfer allows threading closer to the bottom of blind holes than a standard plug tap. A dual-layer TiAlN/TiN coating provides heat resistance and lubricity, extending tool life in abrasive and hard-to-machine workpiece materials. The right-hand, 3-flute straight-flute geometry suits machine tapping operations on drill presses, CNC machining centers, and tapping heads. Overall length is 1.941 inches, with a shank diameter of 0.141 inches and a tapping depth of 0.709 inches. Class of fit is 6HX with a thread limit of D3/D4.

This tap is rated for blind-hole and through-hole threading applications. Its cobalt base material and TiAlN/TiN coating make it appropriate for abrasive materials and cast iron where high-speed steel taps wear prematurely. Typical installations include production machining environments where metric M3 fastener threads are required and tool life under heat and abrasion is a primary concern. The straight-flute design is best suited for short-chipping materials rather than long-chipping alloys.

Key Features

• Modified bottoming chamfer for threading near the base of blind holes
• TiAlN/TiN dual-layer coating for heat resistance and extended tool life
• Cobalt base material rated for abrasive materials and cast iron
• 3-flute straight-flute geometry for rigid, machine-driven tapping
• Class 6HX fit with thread limit D3/D4 for close-tolerance metric threads
• Right-hand thread direction, no coolant-through requirement

Compatibility

Designed for blind-hole and through-hole threading in abrasive materials and cast iron; suitable for M3x0.50 metric coarse thread applications across standard machine tapping setups.

Installation Notes

Installation and use of machine taps should be performed by qualified machinists or tooling technicians familiar with machine tapping practices. Secure the workpiece and ensure proper tap alignment before engaging the spindle to prevent tap breakage. Use an appropriate cutting fluid or tapping compound rated for the workpiece material to reduce friction and heat buildup. For blind-hole work, confirm available thread depth against the 0.709-inch tapping depth to avoid bottoming the tap under power.