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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

The CHICAGO-LATROBE Spiral Point Tap (SKU 357173, MPN 357173) is a general purpose spiral-point tap with a 1/4"-28 UNF thread size. It features an H3 / 2B tolerance, bottoming chamfer, 2-flute design, and is made of…

SKU 3G-OTH-215711

Brand
CHICAGO-LATROBE
Item
General Purpose Spiral-Point Tap
Category
General Purpose Spiral-Point Taps
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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
357173
Type
H3 / 2B, Bottoming Chamfer, High Speed Steel
Flute
2

Technical Documents

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

Product Description

The CHICAGO-LATROBE Spiral Point Tap (SKU 357173, MPN 357173) is a general purpose spiral-point tap with a 1/4"-28 UNF thread size. It features an H3 / 2B tolerance, bottoming chamfer, 2-flute design, and is made of high-speed steel.

Frequently Asked Questions

What is the CHICAGO-LATROBE Spiral Point Tap 357173 used for?

The CHICAGO-LATROBE Spiral Point Tap 357173 is used for threading blind holes in ferrous and non-ferrous materials. Its spiral-point design pushes chips ahead, preventing clogging. Common applications include automotive, aerospace, and general manufacturing where precise UNF threads are required.

What are the specifications of the CHICAGO-LATROBE Spiral Point Tap 357173?

The CHICAGO-LATROBE Spiral Point Tap 357173 has a thread size of 1/4"-28 UNF, with H3 / 2B tolerance. It features 2 flutes, a bottoming chamfer, and is made from high-speed steel. The manufacturer part number is 357173, and it is designed for general-purpose tapping.

Where to buy CHICAGO-LATROBE Spiral Point Tap 357173 worldwide?

You can source the CHICAGO-LATROBE Spiral Point Tap 357173 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 on this and other CHICAGO-LATROBE tooling.

How to select the right CHICAGO-LATROBE Spiral Point Tap for my application?

Select the CHICAGO-LATROBE Spiral Point Tap based on thread size, pitch, and material. For blind holes, use a bottoming chamfer like the 357173. Match the tap tolerance (e.g., H3) to the required thread class (e.g., 2B). Consult a tap selection guide for optimal speeds and lubrication.

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 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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Compatible alternatives & equivalents

Cross-referenced by specification & description
CHICAGO-LATROBE Spiral Point Tap: 1/4"-20 UNC, H3 / 2B, 2 Flute, Bottoming Chamfer, High Speed Steel (MPN 357058)
CHICAGO-LATROBE
CHICAGO-LATROBE Spiral Point Tap: 1/4"-20 UNC, H3 / 2B, 2 Flute, Bottoming Chamfer, High Speed Steel (MPN 357058)
CHICAGO-LATROBE Spiral Point Tap: 1/4"-28 UNF, H3 / 2B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 357165)
CHICAGO-LATROBE
CHICAGO-LATROBE Spiral Point Tap: 1/4"-28 UNF, H3 / 2B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 357165)
CHICAGO-LATROBE Spiral Flute Tap: 1/4"-28 UNF, H3 / 2B, 3 Flute, Bottoming Chamfer, High Speed Steel (MPN 367933)
CHICAGO-LATROBE
CHICAGO-LATROBE Spiral Flute Tap: 1/4"-28 UNF, H3 / 2B, 3 Flute, Bottoming Chamfer, High Speed Steel (MPN 367933)
This spiral-point tap is designed for through-hole threading in ferrous and non-ferrous materials. It features a bottoming chamfer for threading close to the bottom of blind holes, with an H3 / 2B tolerance class. The 2-flute design and spiral point push chips forward, reducing clogging. Suitable for general manufacturing applications requiring precise UNF threads
CHICAGO-LATROBE
This spiral-point tap is designed for through-hole threading in ferrous and non-ferrous materials. It features a bottoming chamfer for threading close to the bottom of blind holes, with an H3 / 2B tolerance class. The 2-flute design and spiral point push chips forward, reducing clogging. Suitable for general manufacturing applications requiring precise UNF threads
This spiral-point tap is designed for through-hole threading in metal. Its spiral-point geometry pushes chips forward, reducing chip clogging. Made from high-speed steel with a plug chamfer and H2 / 2B tolerance, it is suited for general-purpose tapping in materials such as steel and aluminum
CHICAGO-LATROBE
This spiral-point tap is designed for through-hole threading in metal. Its spiral-point geometry pushes chips forward, reducing chip clogging. Made from high-speed steel with a plug chamfer and H2 / 2B tolerance, it is suited for general-purpose tapping in materials such as steel and aluminum
CHICAGO-LATROBE Spiral Point Tap: #10-32 UNF, H3 / 2B, 2 Flute, Bottoming Chamfer, High Speed Steel (MPN 356779)
CHICAGO-LATROBE
CHICAGO-LATROBE Spiral Point Tap: #10-32 UNF, H3 / 2B, 2 Flute, Bottoming Chamfer, High Speed Steel (MPN 356779)

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This spiral-point tap is designed for through-hole threading in ferrous and non-ferrous materials. It features a plug chamfer and H2 / 2B tolerance for general-purpose applications. Made from high-speed steel with 2 flutes, it pushes chips forward for clean thread formation
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This spiral-point tap is designed for through-hole threading in ferrous and non-ferrous materials. It features a plug chamfer and H2 / 2B tolerance for general-purpose applications. Made from high-speed steel with 2 flutes, it pushes chips forward for clean thread formation
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