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CHICAGO-LATROBE 1"-11.5 NPT Semi-Bottoming Chamfer Extension Pipe Tap - Extension Pipe Taps
CHICAGO-LATROBEExtension Pipe Taps

CHICAGO-LATROBE 1"-11.5 NPT Semi-Bottoming Chamfer Extension Pipe Tap

The CHICAGO-LATROBE Extension Tap (SKU 384529, MPN 384529) is a 1"-11.5 NPT semi-bottoming chamfer extension pipe tap made from high-speed steel with 5 flutes.

SKU 3G-OTH-313243

Brand
CHICAGO-LATROBE
Item
1"-11.5 NPT Semi-Bottoming Chamfer Extension Pipe Tap
Part Number
384529
Category
Extension Pipe Taps
Available to Order
Also known as:384529CHICAGO-LATROBE
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Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
384529
Type
Semi-Bottoming Chamfer, High Speed Steel
Flute
5

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

Product Description

The CHICAGO-LATROBE Extension Tap (SKU 384529, MPN 384529) is a 1"-11.5 NPT semi-bottoming chamfer extension pipe tap made from high-speed steel with 5 flutes.

Frequently Asked Questions

What is the CHICAGO-LATROBE Extension Tap 384529 used for?

The CHICAGO-LATROBE Extension Tap 384529 is used for threading internal NPT pipe threads in hard-to-reach areas. Its extended length and semi-bottoming chamfer allow threading close to the bottom of a blind hole. Common applications include plumbing, hydraulic systems, and industrial piping where standard taps cannot reach.

What are the specifications of the CHICAGO-LATROBE Extension Tap 384529?

The CHICAGO-LATROBE Extension Tap 384529 has a 1"-11.5 NPT thread size, 5 flutes, and a semi-bottoming chamfer. It is made from high-speed steel (HSS) for durability. The manufacturer part number is 384529. This tap is designed for threading pipe fittings in steel, stainless steel, and other ferrous materials.

Where to buy the CHICAGO-LATROBE Extension Tap 384529 worldwide?

You can source the CHICAGO-LATROBE Extension Tap 384529 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time. 3G Electric supplies this tap as part of our extensive cutting tool range.

How to select the correct extension tap for NPT threading?

To select the correct extension tap, match the thread size (e.g., 1"-11.5 NPT) and chamfer type to your application. A semi-bottoming chamfer, as on the CHICAGO-LATROBE 384529, is ideal for threading close to the bottom of blind holes. Ensure the tap material (HSS) suits the workpiece hardness. Always use proper cutting fluid for thread quality.

Used in

Common applications for CHICAGO-LATROBE
Aerospace manufacturing — Chicago-Latrobe NAS-spec jobber-length drill bits (e.g., MPN 42631) for drilling holes in airframe components.
Metal fabrication — Chicago-Latrobe single-flute countersinks (e.g., MPN 56774) for deburring and chamfering holes in steel plates.
Machine shop — Chicago-Latrobe 82° countersinks (e.g., MPN 56738) for creating flush-mount recesses for flat-head screws in assemblies.
Maintenance and repair — Chicago-Latrobe 90° countersinks (e.g., MPN 56760) for chamfering holes and removing burrs on industrial equipment.
Automotive production — Chicago-Latrobe HSS drill bits for holemaking in engine blocks and chassis components.
General machining — Chicago-Latrobe countersinks in various body diameters for chamfering and deburring in job shops.
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CHICAGO-LATROBE Products

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

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Extension pipe tap for cutting internal NPT threads in hard-to-reach or deep-hole applications. Made from high-speed steel with 4 flutes and a semi-bottoming chamfer. Suitable for threading in confined spaces such as pipe fittings or manifolds
CHICAGO-LATROBE
Extension pipe tap for cutting internal NPT threads in hard-to-reach or deep-hole applications. Made from high-speed steel with 4 flutes and a semi-bottoming chamfer. Suitable for threading in confined spaces such as pipe fittings or manifolds

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