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ISO H4-toleranced holes that fit standard tooling setups
delivering consistent thread quality and surface finish across materials
Tapered neck for enhanced rigidity: Increases stability along the cutting length
Designed for left-hand UN threading
more consistent threads with less rework
OSG Threading Tap - BA Spiral Point HSS-E - Steam Oxide Coated Plus - Through Hole - 2BA SPIRALMILLHOLDER ISO H4-toleranced holes that fitEngineered for precision machining, the OSG BA Spiral Point Threading Tap delivers accurate 2BA threads in through hole applications. Built with cobalt enhanced HSS and a Steam Oxide Coated Plus finish, it combines durability with reliable performance for demanding tapping tasks. Threading Type: BA spiral point geometry for efficient forward cutting and clean chip evacuation in through holes. Material: HSS E (high speed steel with cobalt) for improved
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