CHICAGO-LATROBE Spiral Flute Tap: 1/4"-20 UNC, H11 / 1B, 3 Flute, Semi-Bottoming Chamfer (MPN 313525)
The CHICAGO-LATROBE Spiral Flute Tap (MPN 313525) is an oversized spiral-flute tap with a 1/4"-20 UNC thread. It features an H11 / 1B tolerance, 3 flutes, and a semi-bottoming chamfer, designed for threading…
SKU 3G-OTH-211246
Local availability & support — the Philippines
- Delivery
- 5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
- Payment
- Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
- Ships to
- Manila, Quezon City, Cebu, Davao, Batangas
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Product Description
The CHICAGO-LATROBE Spiral Flute Tap (MPN 313525) is an oversized spiral-flute tap with a 1/4"-20 UNC thread. It features an H11 / 1B tolerance, 3 flutes, and a semi-bottoming chamfer, designed for threading applications requiring precise chip evacuation.
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 313525 spiral flute tap used for?
The CHICAGO-LATROBE 313525 spiral flute tap is used for threading blind holes in materials such as steel and aluminum. Its spiral flute design evacuates chips upward, preventing clogging. The semi-bottoming chamfer allows threading close to the bottom of the hole. This oversized H11 / 1B tap is ideal for applications requiring a slightly larger thread tolerance.
What are the specifications of the CHICAGO-LATROBE 313525 tap?
The CHICAGO-LATROBE 313525 is a 1/4"-20 UNC spiral flute tap with an H11 / 1B tolerance, 3 flutes, and a semi-bottoming chamfer. It is designed for oversized threading applications. The manufacturer part number is 313525. This tap is suitable for creating threads in blind holes where chip evacuation is critical.
Where to buy CHICAGO-LATROBE taps worldwide?
You can source CHICAGO-LATROBE taps, including the 313525, through 3G Electric. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time. We supply genuine CHICAGO-LATROBE tooling for your manufacturing needs.
How to select the correct CHICAGO-LATROBE tap for blind holes?
For blind holes, choose a spiral flute tap like the CHICAGO-LATROBE 313525 to evacuate chips upward. Ensure the tap size matches your thread specification, such as 1/4"-20 UNC. The chamfer type—semi-bottoming in this case—determines how close to the hole bottom you can thread. Always use proper cutting fluid and follow manufacturer speed recommendations.
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Common applications for CHICAGO-LATROBECHICAGO-LATROBE Products
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.
