OSG Spiral Flute Tap: 3/4"-16 UNF, H5 / 2B-3B, 4 Flute
The OSG Spiral Flute Tap (3/4"-16 UNF) is a spiral-flute tap for steel and stainless steel, featuring an H5 / 2B-3B tolerance, 4 flutes, and a modified bottoming chamfer (MPN 1650504608). 3G Electric interprets this…
SKU 3G-OTH-218567
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Product Description
The OSG Spiral Flute Tap (3/4"-16 UNF) is a spiral-flute tap for steel and stainless steel, featuring an H5 / 2B-3B tolerance, 4 flutes, and a modified bottoming chamfer (MPN 1650504608). 3G Electric interprets this demand and sources the genuine OSG tool, backed by specialist expertise across 14 industrial departments.
Frequently Asked Questions
What is an OSG spiral flute tap used for?
An OSG spiral flute tap is used for threading blind holes in steel and stainless steel. Its spiral design pushes chips upward, preventing clogging and ensuring clean threads. This makes it ideal for automotive, aerospace, and general machining applications where chip evacuation is critical.
What are the specifications of the OSG 3/4"-16 UNF spiral flute tap?
This OSG tap has a 3/4"-16 UNF thread, H5 / 2B-3B tolerance, 4 flutes, and a modified bottoming chamfer. It is designed for threading blind holes in steel and stainless steel. The manufacturer part number is 1650504608.
Where to buy OSG taps in worldwide?
3G Electric supplies OSG taps worldwide. We handle full logistics and customs clearance to deliver to your facility. As a global industrial solutions provider, we source genuine OSG cutting tools and support your procurement with technical expertise across 14 industrial departments.
How to select the right spiral flute tap for steel?
Select a spiral flute tap based on thread size, pitch, and material. For blind holes in steel, choose a tap with a modified bottoming chamfer and H5 tolerance for precise fit. OSG taps are engineered for chip evacuation; ensure your tap matches the hole depth and thread class (e.g., 2B-3B).
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Common applications for OSGOSG Products
3G Electric supplies OSG spiral-flute taps for steel & stainless steel. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.













