OSG Extension Tap: 3/8"-16 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer
The OSG Extension Tap (SKU 3G-OTH-313561) is a 3/8"-16 UNC spiral-point extension tap with an H3 / 2B-3B tolerance, plug chamfer, and 3 flutes, made from high-speed steel (MPN 2103800). It is designed for threading…
SKU 3G-OTH-313561
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The OSG Extension Tap (SKU 3G-OTH-313561) is a 3/8"-16 UNC spiral-point extension tap with an H3 / 2B-3B tolerance, plug chamfer, and 3 flutes, made from high-speed steel (MPN 2103800). It is designed for threading applications requiring extended reach.
Frequently Asked Questions
What is the OSG Extension Tap 2103800 used for?
The OSG Extension Tap 2103800 is used for threading blind or deep holes in metal parts where standard taps cannot reach. It is common in automotive, aerospace, and general machining for creating 3/8"-16 UNC internal threads in steel and other materials.
What are the specifications of the OSG Extension Tap 2103800?
The OSG Extension Tap 2103800 has a 3/8"-16 UNC thread size, H3 / 2B-3B tolerance, 3-flute design, and plug chamfer. It is made of high-speed steel (HSS) with a spiral-point geometry for efficient chip evacuation. The manufacturer part number is 2103800.
Where to buy the OSG Extension Tap 2103800 worldwide?
You can source the OSG Extension Tap 2103800 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 extension tap for UNC threads?
To select the correct OSG extension tap, match the thread size (e.g., 3/8"-16 UNC), tolerance class (H3 / 2B-3B), and chamfer type (plug) to your application. Ensure the tap length reaches the hole depth. OSG taps are precision-ground for consistent thread quality.
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Common applications for OSGOSG Products
3G Electric supplies OSG spiral-point extension taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
