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CHICAGO-LATROBE #4-40 UNC General Purpose Spiral-Point Tap - General Purpose Spiral-Point Taps
CHICAGO-LATROBEGeneral Purpose Spiral-Point Taps

CHICAGO-LATROBE #4-40 UNC General Purpose Spiral-Point Tap

<p>The CHICAGO-LATROBE #4-40 UNC General Purpose Spiral-Point Tap (MPN 356324) is a high-speed steel tap designed for efficient threading in through-hole applications. With a plug chamfer and 2-flute design, it…

SKU 3G-OTH-214042

Brand
CHICAGO-LATROBE
Item
#4-40 UNC General Purpose Spiral-Point Tap
Part Number
356324
Category
General Purpose Spiral-Point Taps
Available to Order
Also known as:356324CHICAGO-LATROBE
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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
356324
Type
H2 / 2B, Plug Chamfer, High Speed Steel
Flute
2

Technical Documents

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

Product Description

<p>The CHICAGO-LATROBE #4-40 UNC General Purpose Spiral-Point Tap (MPN 356324) is a high-speed steel tap designed for efficient threading in through-hole applications. With a plug chamfer and 2-flute design, it offers balanced cutting action and chip evacuation, making it suitable for general purpose tapping in a variety of materials. The H2 / 2B tolerance ensures a precise thread fit.</p><p>Ideal for manufacturing and maintenance operations, this tap is a reliable choice for production environments. As a Singapore-based supplier, 3G Electric offers this tap with SGD quotes on request, handles GST for local buyers, and provides fast delivery across Singapore and Southeast Asia, with worldwide shipping available.</p>

Frequently Asked Questions

What does the H2 / 2B specification mean for this tap?

H2 indicates the tap's thread height tolerance, providing a slightly larger pitch diameter for better fit in 2B class threads. 2B is a standard tolerance for tapped holes, ensuring a medium fit for general applications.

Is this tap suitable for through-hole tapping?

Yes, the spiral-point design (also known as gun nose) pushes chips ahead of the tap, making it ideal for through-hole applications. The plug chamfer also helps in starting threads in through holes.

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 general purpose spiral-point taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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This spiral-point tap is designed for general-purpose threading of blind or through holes in metals such as steel, aluminum, and cast iron. The spiral-point geometry pushes chips forward, reducing clogging in production environments. Made from high-speed steel with a D4 / 6H tolerance class, 2 flutes, and a plug chamfer. Manufacturer part number 360854
CHICAGO-LATROBE
This spiral-point tap is designed for general-purpose threading of blind or through holes in metals such as steel, aluminum, and cast iron. The spiral-point geometry pushes chips forward, reducing clogging in production environments. Made from high-speed steel with a D4 / 6H tolerance class, 2 flutes, and a plug chamfer. Manufacturer part number 360854

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