Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

CHICAGO-LATROBE Extension Tap: 3/8"-18 NPT, 4 Flute, Semi-Bottoming Chamfer, High Speed Steel (MPN 384526) - Extension Pipe Taps
CHICAGO-LATROBEExtension Pipe Taps

CHICAGO-LATROBE Extension Tap: 3/8"-18 NPT, 4 Flute, Semi-Bottoming Chamfer, High Speed Steel (MPN 384526)

The CHICAGO-LATROBE Extension Tap (SKU 53PT65) is a 3/8"-18 NPT semi-bottoming chamfer pipe tap made of high-speed steel with 4 flutes (MPN 384526). 3G Electric sources this genuine industrial threading tool across…

SKU 3G-OTH-313254

Brand
CHICAGO-LATROBE
Item
Extension Tap: 3/8"-18 NPT, 4 Flute, Semi-Bottoming Chamfer, High Speed Steel
Category
Extension Pipe Taps
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
384526
Type
Semi-Bottoming Chamfer, High Speed Steel
Flute
4
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The CHICAGO-LATROBE Extension Tap (SKU 53PT65) is a 3/8"-18 NPT semi-bottoming chamfer pipe tap made of high-speed steel with 4 flutes (MPN 384526). 3G Electric sources this genuine industrial threading tool across 14 departments — and far more — with specialist depth in combustion, pumps and controls as an authorised distributor for brands like FBR, Interpump, Riello, Beckett, Schneider, ABB, Siemens, SKF, Festo and Fluke.

Frequently Asked Questions

What is the CHICAGO-LATROBE Extension Tap 384526 used for?

The CHICAGO-LATROBE Extension Tap 384526 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, making it ideal for plumbing, hydraulic, and pneumatic system maintenance in industrial settings.

What are the specifications of the CHICAGO-LATROBE Extension Tap 384526?

The CHICAGO-LATROBE Extension Tap 384526 is a 3/8"-18 NPT pipe tap with 4 flutes, a semi-bottoming chamfer, and is made from high-speed steel. The manufacturer part number is 384526. It is designed for threading NPT pipe threads in confined spaces where standard taps cannot reach.

Where to buy the CHICAGO-LATROBE Extension Tap 384526 worldwide?

You can source the CHICAGO-LATROBE Extension Tap 384526 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; we provide this tap as part of our extensive sourcing network.

How to select the correct CHICAGO-LATROBE Extension Tap for NPT threads?

To select the correct CHICAGO-LATROBE Extension Tap, match the tap size to the NPT thread specification—for example, 3/8"-18 NPT. Choose a semi-bottoming chamfer for threading close to the bottom of blind holes, and ensure the tap material (high-speed steel) suits the workpiece. Always verify the manufacturer part number, such as 384526, for exact fit.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Similar products

Matched by specification & description
CHICAGO-LATROBE Extension Tap: 3/8"-18 NPTF, 4 Flute, Semi-Bottoming Chamfer (MPN 386186)
CHICAGO-LATROBE
CHICAGO-LATROBE Extension Tap: 3/8"-18 NPTF, 4 Flute, Semi-Bottoming Chamfer (MPN 386186)
CHICAGO-LATROBE Extension Tap: 1/4"-18 NPTF, 4 Flute, Semi-Bottoming Chamfer (MPN 386152)
CHICAGO-LATROBE
CHICAGO-LATROBE Extension Tap: 1/4"-18 NPTF, 4 Flute, Semi-Bottoming Chamfer (MPN 386152)
CHICAGO-LATROBE Pipe and Conduit Thread Tap: 3/8"-18 NPTF, 4 Flute, Semi-Bottoming Chamfer (MPN 385444)
CHICAGO-LATROBE
CHICAGO-LATROBE Pipe and Conduit Thread Tap: 3/8"-18 NPTF, 4 Flute, Semi-Bottoming Chamfer (MPN 385444)
CHICAGO-LATROBE Extension Tap: 1/4"-20 UNC, H11, 3 Flute, Plug Chamfer, High Speed Steel (MPN 313544)
CHICAGO-LATROBE
CHICAGO-LATROBE Extension Tap: 1/4"-20 UNC, H11, 3 Flute, Plug Chamfer, High Speed Steel (MPN 313544)

More from CHICAGO-LATROBE

View all CHICAGO-LATROBE parts
CHICAGO-LATROBE Extension Tap: 3/8"-18 NPTF, 4 Flute, Semi-Bottoming Chamfer, High Speed Steel (MPN 386040)
CHICAGO-LATROBE
CHICAGO-LATROBE Extension Tap: 3/8"-18 NPTF, 4 Flute, Semi-Bottoming Chamfer, High Speed Steel (MPN 386040)
CHICAGO-LATROBE Extension Tap: 1/8"-27 NPT, 4 Flute, Semi-Bottoming Chamfer, High Speed Steel (MPN 384524)
CHICAGO-LATROBE
CHICAGO-LATROBE Extension Tap: 1/8"-27 NPT, 4 Flute, Semi-Bottoming Chamfer, High Speed Steel (MPN 384524)
CHICAGO-LATROBE Extension Tap: 1"-11.5 NPT, 5 Flute, Semi-Bottoming Chamfer, High Speed Steel (MPN 384529)
CHICAGO-LATROBE
CHICAGO-LATROBE Extension Tap: 1"-11.5 NPT, 5 Flute, Semi-Bottoming Chamfer, High Speed Steel (MPN 384529)
CHICAGO-LATROBE Extension Tap: 1/8"-27 NPTF, 4 Flute, Semi-Bottoming Chamfer, High Speed Steel (MPN 386008)
CHICAGO-LATROBE
CHICAGO-LATROBE Extension Tap: 1/8"-27 NPTF, 4 Flute, Semi-Bottoming Chamfer, High Speed Steel (MPN 386008)
CHICAGO-LATROBE Extension Tap: 1/4"-18 NPT, 4 Flute, Semi-Bottoming Chamfer, High Speed Steel (MPN 384525)
CHICAGO-LATROBE
CHICAGO-LATROBE Extension Tap: 1/4"-18 NPT, 4 Flute, Semi-Bottoming Chamfer, High Speed Steel (MPN 384525)
CHICAGO-LATROBE Extension Tap: 3/4"-14 NPT, 5 Flute, Semi-Bottoming Chamfer, High Speed Steel (MPN 384528)
CHICAGO-LATROBE
CHICAGO-LATROBE Extension Tap: 3/4"-14 NPT, 5 Flute, Semi-Bottoming Chamfer, High Speed Steel (MPN 384528)
CHICAGO-LATROBE Extension Tap: 1/2"-14 NPT, 4 Flute, Semi-Bottoming Chamfer, High Speed Steel (MPN 384527)
CHICAGO-LATROBE
CHICAGO-LATROBE Extension Tap: 1/2"-14 NPT, 4 Flute, Semi-Bottoming Chamfer, High Speed Steel (MPN 384527)
CHICAGO-LATROBE Extension Tap: 1/8"-27 NPTF, 4 Flute, Semi-Bottoming Chamfer (MPN 386129)
CHICAGO-LATROBE
CHICAGO-LATROBE Extension Tap: 1/8"-27 NPTF, 4 Flute, Semi-Bottoming Chamfer (MPN 386129)