OSG Spiral Flute Tap: 1/2"-13 UNC, H3 / 2B-3B, 3 Flute
The OSG Spiral Flute Tap (1/2"-13 UNC, MPN 1733408) is a spiral-flute tap for steel and stainless steel, featuring an H3 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer. 3G Electric interprets this…
SKU 3G-OTH-217858
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Product Description
The OSG Spiral Flute Tap (1/2"-13 UNC, MPN 1733408) is a spiral-flute tap for steel and stainless steel, featuring an H3 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer. 3G Electric interprets this demand and sources the genuine OSG product, supporting your operation across 14 industrial departments with specialist depth in combustion, pumps, and controls.
Frequently Asked Questions
What is the OSG spiral flute tap 1733408 used for?
The OSG spiral flute tap 1733408 is designed for threading blind holes in steel and stainless steel. Its spiral flute design evacuates chips upward, preventing clogging in deep or blind holes. It is commonly used in automotive, aerospace, and general manufacturing applications requiring precise UNC threads.
What are the specifications of the OSG spiral flute tap 1733408?
This OSG tap has a 1/2"-13 UNC thread size, H3 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer. It is designed for threading blind holes in steel and stainless steel. The manufacturer part number is 1733408.
Where to buy the OSG spiral flute tap 1733408 worldwide?
You can source the OSG spiral flute tap 1733408 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time.
How to select the correct OSG spiral flute tap for steel?
Select an OSG spiral flute tap based on thread size, tolerance class, and material. For blind holes in steel, use a modified bottoming chamfer and H3 tolerance for 2B-3B fit. Ensure the tap matches your hole depth and machine type. OSG taps are engineered for consistent performance in production threading.
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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.















