OSG Spiral Point Tap: 9/16"-18 UNF, H3 / 2B-3B, 3 Flute
SKU 3G-OTH-216375
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Frequently Asked Questions
What is the OSG Spiral Point Tap 2857800 used for?
The OSG Spiral Point Tap 2857800 is a general-purpose tap designed for through-hole threading in metals. Its spiral-point design pushes chips forward, reducing clogging and breakage. It is commonly used in automotive, aerospace, and general manufacturing for creating UNF threads in steel, aluminum, and alloys.
What are the specifications of the OSG Spiral Point Tap 2857800?
The OSG Spiral Point Tap 2857800 has a thread size of 9/16"-18 UNF, with a H3 / 2B-3B tolerance class. It features 3 flutes and a plug chamfer. The manufacturer part number is 2857800. This tap is designed for through-hole applications and provides accurate thread forming in various materials.
Where to buy the OSG Spiral Point Tap 2857800 worldwide?
You can source the OSG Spiral Point Tap 2857800 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; we supply genuine OSG cutting tools to industrial buyers internationally.
How to select the correct OSG Spiral Point Tap for UNF threads?
To select the correct OSG spiral point tap, match the thread size (e.g., 9/16"-18 UNF) and tolerance class (H3 / 2B-3B) to your application. For through holes, a plug chamfer and spiral point design are ideal. Ensure the tap material suits your workpiece—OSG taps are available for steel, stainless, and aluminum. 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.















