OSG Straight Flute Tap: 1/2"-13 UNC, 2B+, 4 Flute, Plug Chamfer
The OSG Straight Flute Tap (1/2"-13 UNC, MPN 1592500) is an oversized hand tap with a 2B+ tolerance, plug chamfer, 4 flutes, and high-speed steel construction. 3G Electric interprets your demand for this precision…
SKU 3G-OTH-272766
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Product Description
The OSG Straight Flute Tap (1/2"-13 UNC, MPN 1592500) is an oversized hand tap with a 2B+ tolerance, plug chamfer, 4 flutes, and high-speed steel construction. 3G Electric interprets your demand for this precision threading tool, sources it from OSG, and supports your application across 14 industrial departments — with specialist depth in combustion, pumps, and controls as a trust anchor.
Frequently Asked Questions
What is OSG Straight Flute Tap 1/2"-13 UNC used for?
This OSG tap is used for threading blind or through holes in metal parts, typically in automotive, aerospace, or general machining. Its 4-flute design clears chips efficiently, and the 2B+ oversized tolerance suits applications requiring a slightly larger thread fit.
What are the specifications of OSG Straight Flute Tap 1/2"-13 UNC?
This OSG tap has a 1/2"-13 UNC thread size, 2B+ tolerance, 4 flutes, and a plug chamfer. It is made of high-speed steel (HSS) for durability in ferrous materials. The manufacturer part number is 1592500.
Where to buy OSG Straight Flute Tap 1/2"-13 UNC worldwide?
3G Electric supplies and delivers this OSG tap worldwide. We handle full logistics and customs clearance, ensuring you receive the correct threading tool for your application. Contact us for availability and lead time to your location.
How to select the correct OSG tap for a threading application?
Match the tap thread size (1/2"-13 UNC) to your hole and fastener. Choose plug chamfer for general blind holes. For oversized threads, use 2B+ tolerance. Confirm material compatibility—HSS works for steel. 3G Electric can help source the right OSG tap for your job.
Used in
Common applications for OSGOSG Products
3G Electric supplies OSG oversized hand taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

