OSG Spiral Flute Tap: 1/2"-20 UNF, H5 / 2B-3B, 3 Flute
The OSG Spiral Flute Tap (1/2"-20 UNF) is a spiral-flute tap for steel and stainless steel, featuring an H5 / 2B-3B tolerance, 3-flute design, and modified bottoming chamfer (MPN 1645012205). 3G Electric interprets…
SKU 3G-OTH-218749
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Product Description
The OSG Spiral Flute Tap (1/2"-20 UNF) is a spiral-flute tap for steel and stainless steel, featuring an H5 / 2B-3B tolerance, 3-flute design, and modified bottoming chamfer (MPN 1645012205). 3G Electric interprets your demand and sources this genuine OSG tool across 14 industrial departments, with specialist depth in cutting tools and controls to ensure you get the right solution.
Frequently Asked Questions
What is the OSG spiral flute tap 1/2"-20 UNF used for?
This OSG spiral flute tap is designed for threading blind holes in steel and stainless steel. Its spiral flute design evacuates chips upward, preventing clogging, while the modified bottoming chamfer allows threading close to the bottom of the hole. It is commonly used in automotive, aerospace, and general manufacturing applications.
What are the specifications of the OSG spiral flute tap MPN 1645012205?
The OSG spiral flute tap has a thread size of 1/2"-20 UNF, with an H5 tolerance class for 2B-3B fit. It features 3 flutes and a modified bottoming chamfer. The manufacturer part number is 1645012205. This tap is suitable for threading blind holes in steel and stainless steel materials.
Where to buy OSG taps in worldwide?
You can source OSG taps, including the spiral flute tap MPN 1645012205, through 3G Electric. As a global industrial equipment distributor since 1990, 3G Electric handles full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this and other OSG tooling.
How to select the correct OSG tap for stainless steel?
For stainless steel, choose a spiral flute tap with a modified bottoming chamfer, like the OSG 1/2"-20 UNF model. The spiral flute design helps evacuate chips, reducing work hardening. Ensure the tap's tolerance class (e.g., H5) matches your required thread fit (2B-3B). Use appropriate cutting fluid and slower speeds for best results.
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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.
