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

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
Part Number
357173
Category
General Purpose Spiral-Point Taps
Available to Order
Also known as:357173CHICAGO-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
357173
Type
H3 / 2B, Bottoming Chamfer, High Speed Steel
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

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.
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