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CHICAGO-LATROBE 1/4"-20 UNC General Purpose Spiral-Point Tap - General Purpose Spiral-Point Taps
CHICAGO-LATROBEGeneral Purpose Spiral-Point Taps

CHICAGO-LATROBE 1/4"-20 UNC General Purpose Spiral-Point Tap

The CHICAGO-LATROBE Spiral Point Tap (MPN 357066) is a 1/4"-20 UNC general purpose tap with H5 / 2B-3B tolerance, 2-flute design, plug chamfer, and high-speed steel construction. 3G Electric interprets your demand…

SKU 3G-OTH-215887

Brand
CHICAGO-LATROBE
Item
1/4"-20 UNC General Purpose Spiral-Point Tap
Part Number
357066
Category
General Purpose Spiral-Point Taps
Available to Order
Also known as:357066CHICAGO-LATROBE
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
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Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
357066
Type
H5 / 2B-3B, Plug Chamfer, High Speed Steel
Flute
2

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

Product Description

The CHICAGO-LATROBE Spiral Point Tap (MPN 357066) is a 1/4"-20 UNC general purpose tap with H5 / 2B-3B tolerance, 2-flute design, plug chamfer, and high-speed steel construction. 3G Electric interprets your demand for this OEM-specified tool and delivers it across 14 industrial departments — with specialist depth in combustion, pumps, and controls as a trust anchor, not a limit.

Frequently Asked Questions

What is the CHICAGO-LATROBE Spiral Point Tap 357066 used for?

The CHICAGO-LATROBE Spiral Point Tap 357066 is used for threading through-holes in metal, steel, and alloys. Its spiral-point design pushes chips forward, preventing clogging in blind holes. Common applications include automotive, aerospace, and general manufacturing where precise 1/4"-20 UNC threads are required.

What are the specifications of the CHICAGO-LATROBE Spiral Point Tap 357066?

The CHICAGO-LATROBE Spiral Point Tap 357066 has a 1/4"-20 UNC thread size, H5 tolerance for 2B-3B class fit, 2 flutes, and a plug chamfer. It is made of high-speed steel (HSS) for durability in general-purpose threading. The manufacturer part number is 357066.

Where to buy the CHICAGO-LATROBE Spiral Point Tap 357066 worldwide?

You can source the CHICAGO-LATROBE Spiral Point Tap 357066 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 times.

How to select the correct CHICAGO-LATROBE Spiral Point Tap for threading?

To select the correct CHICAGO-LATROBE Spiral Point Tap, match the thread size (e.g., 1/4"-20 UNC), tolerance class (H5 for 2B-3B), and chamfer type (plug for through-holes). Ensure the tap material (HSS) suits your workpiece. For blind holes, consider spiral flute taps instead.

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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