OSG Spiral Flute Tap: 7/16"-14 UNC, H3 / 2B-3B, 3 Flute
SKU 3G-OTH-218561
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Frequently Asked Questions
What is the OSG spiral flute tap 0138301 used for?
The OSG spiral flute tap 0138301 is designed for threading blind holes in steel and stainless steel. Its spiral flute design evacuates chips upward, preventing clogging and ensuring clean threads. It is commonly used in automotive, aerospace, and general machining applications where reliable thread quality is critical.
What are the specifications of the OSG 0138301 tap?
The OSG 0138301 is a 7/16"-14 UNC spiral flute tap with a H3 / 2B-3B tolerance class. It has 3 flutes and a bottoming chamfer, making it suitable for threading to the bottom of blind holes. It is manufactured by OSG, a leading cutting tool brand, and is intended for steel and stainless steel workpieces.
Where to buy OSG taps like 0138301 worldwide?
3G Electric supplies OSG taps including model 0138301 to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time on this spiral flute tap for steel and stainless steel threading.
How to select the correct OSG tap for blind holes?
For blind holes in steel or stainless steel, choose a spiral flute tap like the OSG 0138301 with a bottoming chamfer. The spiral flutes push chips out of the hole, preventing breakage. Ensure the tap size matches your thread specification (e.g., 7/16"-14 UNC) and tolerance class (H3 / 2B-3B) for proper fit.
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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.















