WIDIA GTD 7/16"-20 UNF Spiral-Flute Tap for Aluminum

The WIDIA GTD spiral flute tap is designed for threading blind holes in aluminum and non-ferrous materials. Its spiral flute design evacuates chips upward, preventing clogging and ensuring clean threads. It is commonly used in automotive, aerospace, and general manufacturing applications where precise internal threading is required.

This WIDIA GTD tap has a 7/16"-20 UNF thread size, H3 / 3B tolerance, 3 flutes, and a bottoming chamfer. It is made from high-speed steel (HSS) and is optimized for threading aluminum. The manufacturer part number is 16038, and the SKU is 3G-OTH-232810.

You can source WIDIA GTD taps worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we supply genuine WIDIA GTD tooling for manufacturing operations.

For aluminum, choose a spiral flute tap with a bottoming chamfer to thread blind holes. Ensure the thread size (e.g., 7/16"-20 UNF) and tolerance class (H3 / 3B) match your application. High-speed steel construction provides durability. WIDIA GTD taps are engineered for chip evacuation and clean threads in non-ferrous materials.