OSG Spiral Point Tap: 1/4"-28 UNF, H11, 3 Flute, Plug Chamfer
SKU 3G-OTH-251307
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Frequently Asked Questions
What is an OSG spiral point tap used for?
An OSG spiral point tap is designed for through-hole threading in metalworking. Its spiral point pushes chips ahead, preventing clogging and ensuring clean threads in materials like steel and aluminum. 3G Electric supplies this tap across 14 industrial departments, including machining and power transmission.
What are the specifications of the OSG 1/4"-28 UNF spiral point tap?
This OSG tap has a 1/4"-28 UNF thread, H11 tolerance, 3 flutes, plug chamfer, and black oxide vanadium high-speed steel construction. The manufacturer part number is 2840701. It is an oversized spiral-point tap for precision threading. 3G Electric sources this genuine OSG tool for global delivery.
Where to buy OSG taps in worldwide?
3G Electric supplies OSG taps worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source genuine OSG cutting tools like the 1/4"-28 UNF spiral point tap (MPN 2840701) and deliver to your facility. Contact us for availability and lead time.
How to select the right OSG tap for a threading application?
Select an OSG tap based on thread size, material, and hole type. For through holes, a spiral point tap like this 1/4"-28 UNF model pushes chips forward. Match the H11 tolerance to your thread class. 3G Electric can help interpret your application needs and source the correct OSG tool.
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Common applications for OSGOSG Products
3G Electric supplies OSG oversized spiral-point taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















