The 3529741 is a 1-3/8-12 HSS left-hand bottom tap from Pittsburg, designed for producing internal left-hand threads with a 1-3/8-12 thread size.
Typical applications include threading holes that require a left-hand thread and finishing internal threads toward the bottom of a blind hole, consistent with a bottom-tap design.
- Model: 3529741
- Thread size: 1-3/8-12
- Material: HSS
- Thread direction: Left hand
- Tap type: Bottom
- Brand: Pittsburg
