CHICAGO-LATROBE Left-Hand Thread Tap
The CHICAGO-LATROBE Straight Flute Tap (SKU 3G-OTH-265135) is a left-hand thread tap with a 1/2"-20 UNF size, featuring an H3 / 2B tolerance, 4 flutes, and a plug chamfer. This OEM tool is designed for creating…
SKU 3G-OTH-265135
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
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Product Description
The CHICAGO-LATROBE Straight Flute Tap (SKU 3G-OTH-265135) is a left-hand thread tap with a 1/2"-20 UNF size, featuring an H3 / 2B tolerance, 4 flutes, and a plug chamfer. This OEM tool is designed for creating internal threads in industrial applications, backed by 3G Electric's sourcing and support across 14 departments.
Frequently Asked Questions
What is a CHICAGO-LATROBE Straight Flute Tap used for?
This left-hand thread tap is used to cut internal UNF threads in metal parts, typically for applications requiring reverse-thread fasteners. It is common in automotive, aerospace, and industrial maintenance where vibration or assembly direction demands left-hand threads.
What are the specifications of the CHICAGO-LATROBE 1/2"-20 UNF tap?
This tap has a 1/2"-20 UNF thread size, H3 / 2B tolerance, 4 flutes, plug chamfer, and left-hand (LH) rotation. The manufacturer part number is 317789. It is designed for through-hole or blind-hole threading in ferrous and non-ferrous materials.
Where to buy CHICAGO-LATROBE taps in worldwide?
3G Electric supplies CHICAGO-LATROBE taps worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source and deliver genuine cutting tools like this 1/2"-20 UNF left-hand tap to any location. Contact us for availability and lead time.
How to select the correct tap for left-hand threads?
Match the tap to the required thread size, pitch, and class of fit—here 1/2"-20 UNF with H3 / 2B tolerance. Choose plug chamfer for most applications; left-hand taps require reversing spindle direction. Always use proper cutting fluid and tap guides to ensure thread quality and tool life.
Used in
Common applications for CHICAGO-LATROBECHICAGO-LATROBE Products
3G Electric supplies CHICAGO-LATROBE left-hand thread taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.