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

3G Electric
CHICAGO-LATROBE General Purpose Spiral-Point Tap - General Purpose Spiral-Point Taps
CHICAGO-LATROBEGeneral Purpose Spiral-Point Taps

CHICAGO-LATROBE General Purpose Spiral-Point Tap

<p>The CHICAGO-LATROBE General Purpose Spiral-Point Tap (MPN 330145) is engineered for efficient through-hole threading in a wide range of materials. This 5/16&quot;-18 UNC tap features a 2-flute design and plug…

SKU 3G-OTH-214629

Brand
CHICAGO-LATROBE
Item
General Purpose Spiral-Point Tap
Part Number
330145
Category
General Purpose Spiral-Point Taps
Available to Order
Also known as:330145CHICAGO-LATROBE
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
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

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
330145
Type
H5 / 2B-3B, Plug Chamfer
Flute
2

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

<p>The CHICAGO-LATROBE General Purpose Spiral-Point Tap (MPN 330145) is engineered for efficient through-hole threading in a wide range of materials. This 5/16&quot;-18 UNC tap features a 2-flute design and plug chamfer, with an H5 tolerance class suitable for 2B-3B thread classes. Its spiral-point geometry pushes chips forward, reducing clogging and enabling faster, cleaner cuts.</p><p>Ideal for general machining and maintenance applications, this tap is a reliable choice for workshops and manufacturers. As a Singapore-based supplier, 3G Electric offers SGD quotes on request, handles GST for local buyers, and provides fast delivery across Singapore and Southeast Asia.</p>

Frequently Asked Questions

What thread size and class does this tap produce?

This tap cuts a 5/16"-18 UNC thread. With an H5 tolerance, it is designed to produce threads within the 2B-3B class range, suitable for general-purpose applications.

Is this tap suitable for through-hole threading?

Yes, the spiral-point design (also known as a gun tap) is specifically intended for through-hole threading. The 2-flute geometry and plug chamfer help push chips forward, preventing clogging and improving efficiency.

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.
Not sure this is the right part? Photo-identify it

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from CHICAGO-LATROBE

View all CHICAGO-LATROBE parts
This spiral-point tap is designed for threading blind holes in production machining. The spiral point pushes chips forward, reducing clogging and enabling efficient tapping in ferrous and non-ferrous materials. Made from high speed steel with a plug chamfer and 2 flutes, it provides a H2 / 2B class fit for #4-40 UNC threads
CHICAGO-LATROBE
This spiral-point tap is designed for threading blind holes in production machining. The spiral point pushes chips forward, reducing clogging and enabling efficient tapping in ferrous and non-ferrous materials. Made from high speed steel with a plug chamfer and 2 flutes, it provides a H2 / 2B class fit for #4-40 UNC threads
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

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first