Osg 3G-OTH-308197 — Technical Specifications

Name: Osg 3G-OTH-308197 OSG Extension Tap: 3/8"-16 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1290801). Key specifications — attr1315101: H3 / 2B-3B.
Brand: Osg

The OSG Extension Tap (MPN 1290801) is a 3/8"-16 UNC pulley tap with a H3 / 2B-3B tolerance, 4-flute design, plug chamfer, and black oxide high-speed steel construction. This tool is engineered for threading applications requiring extended reach, with its H3 / 2B-3B classification ensuring precise fit for class 2B-3B threads.

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Technical Specifications

Parameter	Value
Type	H3 / 2B-3B, Plug Chamfer, Black Oxide High Speed Steel
Flute	4
Manufacturer Part Number	1290801