OSG Spiral Point Tap: 3/8"-16 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer
The OSG Spiral Point Tap (3/8"-16 UNC, MPN 1231605) is a general-purpose spiral-point tap with a plug chamfer, TiN-coated high-speed steel construction, and three flutes. It is specified as H3 / 2B-3B class, designed…
SKU 3G-OTH-215513
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Product Description
The OSG Spiral Point Tap (3/8"-16 UNC, MPN 1231605) is a general-purpose spiral-point tap with a plug chamfer, TiN-coated high-speed steel construction, and three flutes. It is specified as H3 / 2B-3B class, designed for through-hole threading in a range of materials. 3G Electric sources this and thousands of other industrial tools across 14 departments, with specialist expertise in combustion, pumps, and controls to ensure you get the right solution.
Frequently Asked Questions
What is the OSG spiral point tap 3/8-16 UNC used for?
This OSG spiral point tap is used for threading blind or through holes in ferrous and non-ferrous materials. Its TiN coating reduces friction and extends tool life, making it suitable for general-purpose tapping in automotive, aerospace, and industrial manufacturing applications.
What are the specifications of the OSG 1231605 tap?
The OSG 1231605 is a 3/8-16 UNC spiral point tap with H3 / 2B-3B thread tolerance, 3 flutes, and a plug chamfer. It is made of TiN-coated high-speed steel. These specs ensure accurate thread forming in medium-hard materials up to 850 °C hardness.
Where to buy OSG taps in worldwide?
You can source OSG taps worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time on the OSG 1231605 spiral point tap.
How to select the right OSG spiral point tap for my application?
Select based on thread size (e.g., 3/8-16 UNC), material hardness, and hole type. For blind holes, use a spiral point tap like this OSG model. Match the H3 / 2B-3B tolerance to your thread class requirement. Consult OSG's technical data for optimal speeds and feeds.
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3G Electric supplies OSG general purpose spiral-point taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















