We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

3G Electric
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
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

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
357066
Type
H5 / 2B-3B, Plug 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 (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 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