Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

CHICAGO-LATROBE Low-Shear Spiral-Point Tap - Low-Shear Spiral-Point Taps
CHICAGO-LATROBELow-Shear Spiral-Point Taps

CHICAGO-LATROBE Low-Shear Spiral-Point Tap

The CHICAGO-LATROBE Spiral Point Tap (#4-40 UNC) is a low-shear spiral-point tap with H2 / 2B tolerance, plug chamfer, 2 flutes, and high-speed steel construction (MPN 330175). 3G Electric interprets this demand and…

SKU 3G-OTH-217674

Brand
CHICAGO-LATROBE
Item
Low-Shear Spiral-Point Tap
Category
Low-Shear Spiral-Point Taps
Available to Order
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
330175
Type
H2 / 2B, 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 (#4-40 UNC) is a low-shear spiral-point tap with H2 / 2B tolerance, plug chamfer, 2 flutes, and high-speed steel construction (MPN 330175). 3G Electric interprets this demand and sources the genuine OEM part across 14 industrial departments — with specialist depth in cutting tools and machining — ensuring you get the right answer, not just a catalog.

Frequently Asked Questions

What is the CHICAGO-LATROBE Spiral Point Tap #4-40 UNC used for?

This tap is used for threading #4-40 UNC holes in production environments. Its spiral-point design pushes chips forward, making it ideal for through-hole applications in metals and plastics. Common in automotive, aerospace, and general manufacturing where clean, efficient thread cutting is required.

What are the specifications of the CHICAGO-LATROBE Spiral Point Tap #4-40 UNC?

This tap has a #4-40 UNC thread size, H2 / 2B tolerance, 2-flute design, and plug chamfer. It is made from high-speed steel (HSS) for durability. The manufacturer part number is 330175. It is designed for low-shear spiral-point tapping in through-hole applications.

Where to buy CHICAGO-LATROBE taps in worldwide?

3G Electric supplies CHICAGO-LATROBE taps worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead times. We source and deliver this #4-40 UNC spiral point tap (MPN 330175) to any country.

How to select the right CHICAGO-LATROBE tap for my application?

Select based on thread size, material, and hole type. For through holes, a spiral-point tap like this #4-40 UNC is ideal as it pushes chips ahead. For blind holes, consider a spiral-flute tap. Match the chamfer (plug, bottoming, or taper) to your thread depth requirements. Always use proper cutting fluid.

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 low-shear 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

Compatible alternatives & equivalents

Cross-referenced by specification & description
This high-speed steel spiral-point tap is designed for threading #5-40 UNC through holes in production machining. The spiral-point geometry pushes chips forward, reducing chip congestion. With H2 / 2B tolerance and a plug chamfer, it is suited for general manufacturing applications requiring precise internal threads
CHICAGO-LATROBE
This high-speed steel spiral-point tap is designed for threading #5-40 UNC through holes in production machining. The spiral-point geometry pushes chips forward, reducing chip congestion. With H2 / 2B tolerance and a plug chamfer, it is suited for general manufacturing applications requiring precise internal threads
This #12-24 UNC low-shear spiral-point tap is made of high-speed steel with a plug chamfer and 2 flutes. It features H3 / 2B tolerance for through-hole threading in production and maintenance applications. The spiral-point design pushes chips forward, suitable for threading in steel, aluminum, and similar materials
CHICAGO-LATROBE
This #12-24 UNC low-shear spiral-point tap is made of high-speed steel with a plug chamfer and 2 flutes. It features H3 / 2B tolerance for through-hole threading in production and maintenance applications. The spiral-point design pushes chips forward, suitable for threading in steel, aluminum, and similar materials
CHICAGO-LATROBE Spiral Point Tap: #10-24 UNC, H3 / 2B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 330179)
CHICAGO-LATROBE
CHICAGO-LATROBE Spiral Point Tap: #10-24 UNC, H3 / 2B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 330179)
CHICAGO-LATROBE Spiral Point Tap: #8-32 UNC, H3 / 2B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 330178)
CHICAGO-LATROBE
CHICAGO-LATROBE Spiral Point Tap: #8-32 UNC, H3 / 2B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 330178)
CHICAGO-LATROBE Spiral Point Tap: 5/16"-24 UNF, H3 / 2B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 330188)
CHICAGO-LATROBE
CHICAGO-LATROBE Spiral Point Tap: 5/16"-24 UNF, H3 / 2B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 330188)
This low-shear spiral-point tap is designed for threading blind or through holes in metal. The spiral-point geometry pushes chips forward, reducing clogging and breakage. Made from high-speed steel with a plug chamfer and 2-flute design, it is suitable for general threading applications in ferrous materials
CHICAGO-LATROBE
This low-shear spiral-point tap is designed for threading blind or through holes in metal. The spiral-point geometry pushes chips forward, reducing clogging and breakage. Made from high-speed steel with a plug chamfer and 2-flute design, it is suitable for general threading applications in ferrous materials

More from CHICAGO-LATROBE

View all CHICAGO-LATROBE parts
This low-shear spiral-point tap is designed for through-hole threading in production environments. Its 3-flute geometry pushes chips ahead, reducing clogging and breakage. Made of high-speed steel with a plug chamfer, it is suitable for threading in steel, aluminum, and alloys
CHICAGO-LATROBE
This low-shear spiral-point tap is designed for through-hole threading in production environments. Its 3-flute geometry pushes chips ahead, reducing clogging and breakage. Made of high-speed steel with a plug chamfer, it is suitable for threading in steel, aluminum, and alloys
This low-shear spiral-point tap is designed for threading blind or through holes in production machining. The spiral-point geometry pushes chips forward, preventing clogging and reducing breakage. Suitable for use in steel, aluminum, and cast iron. Made of high-speed steel with a plug chamfer and 2-flute design
CHICAGO-LATROBE
This low-shear spiral-point tap is designed for threading blind or through holes in production machining. The spiral-point geometry pushes chips forward, preventing clogging and reducing breakage. Suitable for use in steel, aluminum, and cast iron. Made of high-speed steel with a plug chamfer and 2-flute design
CHICAGO-LATROBE Spiral Point Tap: #6-32 UNC, H3 / 2B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 330177)
CHICAGO-LATROBE
CHICAGO-LATROBE Spiral Point Tap: #6-32 UNC, H3 / 2B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 330177)
CHICAGO-LATROBE Spiral Point Tap: 5/16"-18 UNC, H3 / 2B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 330187)
CHICAGO-LATROBE
CHICAGO-LATROBE Spiral Point Tap: 5/16"-18 UNC, H3 / 2B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 330187)
This low-shear spiral-point tap is designed for threading through-holes in metal. The spiral-point geometry pushes chips forward, reducing clogging and enabling efficient tapping in production environments. Made from high-speed steel with a plug chamfer and 2-flute design, it is suitable for general machining applications
CHICAGO-LATROBE
This low-shear spiral-point tap is designed for threading through-holes in metal. The spiral-point geometry pushes chips forward, reducing clogging and enabling efficient tapping in production environments. Made from high-speed steel with a plug chamfer and 2-flute design, it is suitable for general machining applications
This spiral-point tap is designed for threading through-holes in metal, with a low-shear geometry that pushes chips forward to prevent clogging. It features a 5/8"-11 UNC thread, H3 / 2B tolerance, plug chamfer, and 3 flutes, constructed from high-speed steel. Suitable for general industrial threading applications in materials such as steel and aluminum
CHICAGO-LATROBE
This spiral-point tap is designed for threading through-holes in metal, with a low-shear geometry that pushes chips forward to prevent clogging. It features a 5/8"-11 UNC thread, H3 / 2B tolerance, plug chamfer, and 3 flutes, constructed from high-speed steel. Suitable for general industrial threading applications in materials such as steel and aluminum
This low-shear spiral-point tap is designed for threading blind or through holes in metal. The spiral-point geometry pushes chips forward, reducing clogging and enabling efficient tapping in CNC and manual operations. Made from high-speed steel with a plug chamfer and 3 flutes, it features an H3 / 2B tolerance for precise thread forming
CHICAGO-LATROBE
This low-shear spiral-point tap is designed for threading blind or through holes in metal. The spiral-point geometry pushes chips forward, reducing clogging and enabling efficient tapping in CNC and manual operations. Made from high-speed steel with a plug chamfer and 3 flutes, it features an H3 / 2B tolerance for precise thread forming
This #10-32 UNF low-shear spiral-point tap is made from high-speed steel with a plug chamfer and 2 flutes. It is designed for through-hole threading in metals, pushing chips forward for efficient chip evacuation in production and maintenance applications
CHICAGO-LATROBE
This #10-32 UNF low-shear spiral-point tap is made from high-speed steel with a plug chamfer and 2 flutes. It is designed for through-hole threading in metals, pushing chips forward for efficient chip evacuation in production and maintenance applications