Solid carbide and Carb-I-Sert ® Carbide Insert Taps in inch, metric and pipe threads. Manufactured by North American Tool Corporation and Allen Benjamin
Amazon.com: YGWAWO Tungsten Steel Carbide Taps Straight Groove Hard Alloy Cnc Cutting Tools for Metal Processing Cutting Tools Metric Thread (M14) : Industrial & Scientific
The Different Types of Carbide Taps and When to Use Them - Browne & Co
Integral Carbide Taps Have Good Wear Resistance and Are Suitable for Machining on Mechanical Lathes - China Straight Taps, Forming Taps | Made-in-China.com