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Osg 3G-OTH-308153 — Technical Specifications

Name: Osg 3G-OTH-308153 OSG Extension Tap: 5/16"-18 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1290401). Key specifications — attr1315101: H3 / 2B-3B.
Brand: Osg

The OSG Extension Tap (MPN 1290401) is a 5/16"-18 UNC pulley tap with a H3 / 2B-3B tolerance, 4-flute design, plug chamfer, and black oxide high-speed steel construction. This tool is designed for threading applications requiring extended reach.

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Technical Specifications

Parameter	Value
Type	H3 / 2B-3B, Plug Chamfer, Black Oxide High Speed Steel
Flute	4
Manufacturer Part Number	1290401