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CHICAGO-LATROBE 5/16"-18 UNC Spiral-Point Extension Tap - Spiral-Point Extension Taps
CHICAGO-LATROBESpiral-Point Extension Taps

CHICAGO-LATROBE 5/16"-18 UNC Spiral-Point Extension Tap

CHICAGO-LATROBE Spiral-Point Extension Taps.

SKU 3G-OTH-313619

Brand
CHICAGO-LATROBE
Item
5/16"-18 UNC Spiral-Point Extension Tap
Part Number
313600
Category
Spiral-Point Extension Taps
Available to Order
Also known as:313600CHICAGO-LATROBE
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Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
313600

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CHICAGO-LATROBE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

CHICAGO-LATROBE Spiral-Point Extension Taps.

Frequently Asked Questions

What is a CHICAGO-LATROBE extension tap used for?

A CHICAGO-LATROBE extension tap is used to cut internal threads in hard-to-reach or deep-hole applications. The extended shank allows threading in recessed areas, blind holes, or where standard taps cannot reach, common in machining, automotive, and industrial maintenance.

What are the specifications of the CHICAGO-LATROBE 313600 extension tap?

The CHICAGO-LATROBE 313600 extension tap has a thread size of 5/16"-18 UNC, H11 tolerance, 3 flutes, and a plug chamfer. It is a spiral-point extension tap designed for through-hole threading, with the MPN 313600 and SKU 313600.

Where to buy CHICAGO-LATROBE extension taps worldwide?

3G Electric supplies CHICAGO-LATROBE extension taps worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us to source the 313600 or other CHICAGO-LATROBE tooling for your operations.

How to select the right extension tap for deep-hole threading?

Select an extension tap like the CHICAGO-LATROBE 313600 based on thread size (5/16"-18 UNC), material hardness (H11 tolerance), and chamfer type (plug for through-holes). Ensure shank length reaches the threading depth. For blind holes, consider bottoming chamfer taps instead.

Used in

Common applications for CHICAGO-LATROBE
Aerospace assembly — Chicago-Latrobe NAS 907 Type B aircraft-extension drill bits for drilling fastener holes in aluminum and titanium skins.
Metal fabrication — Chicago-Latrobe reduced-shank drill bit sets for enlarging holes in structural steel using magnetic drill presses.
Maintenance repair — Chicago-Latrobe left-hand cobalt jobber-length drill bits for removing broken bolts in machinery.
Tool and die making — Chicago-Latrobe jobber-length drill bit sets with 135° split point for precision hole drilling in hardened steels.
Automotive repair — Chicago-Latrobe spiral-flute screw extractors for removing seized fasteners in engine blocks or exhaust systems.
General manufacturing — Chicago-Latrobe HSS jobber-length drill bits for production drilling in mild steel and cast iron.
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CHICAGO-LATROBE Products

3G Electric supplies CHICAGO-LATROBE spiral-point extension taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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