OSG 7/16"-14 UNC Pulley Tap, H3 / 2B-3B, 4 Flute, Plug Chamfer, Black Oxide HSS
The OSG Extension Tap (MPN 1291601) is a 7/16"-14 UNC pulley tap with a H3 / 2B-3B tolerance, 4-flute design, plug chamfer, and black oxide high-speed steel construction. 3G Electric interprets this demand and…
SKU 3G-OTH-308212
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Product Description
The OSG Extension Tap (MPN 1291601) is a 7/16"-14 UNC pulley tap with a H3 / 2B-3B tolerance, 4-flute design, plug chamfer, and black oxide high-speed steel construction. 3G Electric interprets this demand and sources the genuine OSG tool, backed by specialist expertise across 14 industrial departments — including cutting tools — to ensure you get the right threading solution.
Frequently Asked Questions
What is the OSG Extension Tap 7/16"-14 UNC used for?
This OSG extension tap is used for threading blind or through holes in metal parts, particularly where extended reach is needed. It is common in automotive, aerospace, and general manufacturing for creating internal UNC threads in steel and alloys. The plug chamfer and 4-flute design help balance cutting load and chip evacuation.
What are the specifications of the OSG Extension Tap MPN 1291601?
The OSG Extension Tap MPN 1291601 has a thread size of 7/16"-14 UNC, with a H3 / 2B-3B tolerance class. It features 4 flutes, a plug chamfer, and is made from black oxide high speed steel. This pulley tap design provides extended length for reaching deep or recessed threading locations.
Where to buy the OSG Extension Tap 7/16"-14 UNC worldwide?
You can source the OSG Extension Tap 7/16"-14 UNC worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we supply genuine OSG tooling to industrial buyers internationally.
How to select the correct OSG extension tap for a threading job?
To select the correct OSG extension tap, match the thread size (e.g., 7/16"-14 UNC) and tolerance class (H3 / 2B-3B) to your hole requirements. Consider material hardness—black oxide HSS suits general steel. Choose plug chamfer for through holes or blind holes with sufficient depth. Verify shank length for clearance in your setup.
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3G Electric supplies OSG pulley taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
