CHICAGO-LATROBE Spiral Flute Tap: 1/2"-20 UNF, H11 / 1B, 3 Flute, Semi-Bottoming Chamfer (MPN 313534)
The CHICAGO-LATROBE Spiral Flute Tap is an oversized spiral-flute tap with a 1/2"-20 UNF thread, featuring an H11 / 1B tolerance, 3 flutes, and a semi-bottoming chamfer (MPN 313534). 3G Electric interprets customer…
SKU 3G-OTH-211279
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Product Description
The CHICAGO-LATROBE Spiral Flute Tap is an oversized spiral-flute tap with a 1/2"-20 UNF thread, featuring an H11 / 1B tolerance, 3 flutes, and a semi-bottoming chamfer (MPN 313534). 3G Electric interprets customer demand and delivers genuine industrial equipment across 14 departments—and far more—with specialist depth in combustion, pumps, and controls as an authorised distributor for brands including Schneider, ABB, Siemens, SKF, Festo, Fluke, Interpump, and FBR.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is the CHICAGO-LATROBE 313534 spiral flute tap used for?
The CHICAGO-LATROBE 313534 spiral flute tap is used for threading blind holes in materials such as steel and stainless steel. Its spiral flute design evacuates chips upward, preventing clogging. The semi-bottoming chamfer allows threading close to the bottom of the hole. This oversized tap is suitable for maintenance, repair, and production applications.
What are the specifications of the CHICAGO-LATROBE 313534 tap?
The CHICAGO-LATROBE 313534 is a spiral flute tap with a 1/2\"-20 UNF thread, H11 / 1B tolerance, 3 flutes, and a semi-bottoming chamfer. It is an oversized tap designed for threading blind holes. The manufacturer part number is 313534. This tap is suitable for use with various materials in industrial settings.
Where to buy CHICAGO-LATROBE taps in worldwide?
You can source CHICAGO-LATROBE taps, including the 313534 model, through 3G Electric. As a global industrial equipment distributor, 3G Electric handles full logistics, customs clearance, and delivery to worldwide locations. Contact 3G Electric for availability and lead time on this and other CHICAGO-LATROBE tooling products.
How to select the correct spiral flute tap for blind holes?
To select a spiral flute tap for blind holes, match the thread size and pitch (e.g., 1/2\"-20 UNF) to your application. Choose a tap with a semi-bottoming chamfer to thread close to the hole bottom. Ensure the flute design evacuates chips upward. For oversized threads, use an H11 / 1B tolerance tap like the CHICAGO-LATROBE 313534. Consult a tooling specialist for material-specific recommendations.
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3G Electric supplies CHICAGO-LATROBE oversized spiral-flute taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.













