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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. 3G Electric interprets your demand for this specific OEM…

SKU 3G-OTH-313243

Brand
CHICAGO-LATROBE
Item
1"-11.5 NPT Semi-Bottoming Chamfer Extension Pipe Tap
Category
Extension Pipe Taps
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

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

Technical Documents

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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. 3G Electric interprets your demand for this specific OEM threading tool and delivers it across 14 industrial departments, with specialist depth in combustion, pumps and controls as an authorised distributor.

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 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.

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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Compatible alternatives & equivalents

Cross-referenced by specification & description
CHICAGO-LATROBE Extension Tap: 1/8"-27 NPTF, 4 Flute, Semi-Bottoming Chamfer (MPN 386129)
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This spiral-point extension tap is designed for threading blind or through holes in metal where standard taps cannot reach. The extended length provides access to recessed areas, while the plug chamfer and spiral-point design push chips forward to reduce clogging. Made from black oxide high-speed steel for wear resistance and reduced friction
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