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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
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.

Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
330145
Type
H5 / 2B-3B, Plug Chamfer
Flute
2

Technical Documents

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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 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 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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General purpose spiral-point tap for threading through-holes in metal. Features a spiral-point design that pushes chips forward to prevent clogging. Made from high-speed steel with a bottoming chamfer and 3 flutes. Thread size 1/2"-20 UNF, tolerance H3 / 2B
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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
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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

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