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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
Part Number
330175
Category
Low-Shear Spiral-Point Taps
Available to Order
Also known as:330175CHICAGO-LATROBE
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Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
330175
Type
H2 / 2B, 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 (#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 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 low-shear 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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This low-shear spiral-point tap is designed for through-hole threading in ferrous and non-ferrous materials. Its spiral-point geometry pushes chips forward, reducing clogging and enabling faster production tapping in CNC and manual operations. 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 through-hole threading in ferrous and non-ferrous materials. Its spiral-point geometry pushes chips forward, reducing clogging and enabling faster production tapping in CNC and manual operations. Made from high-speed steel with a plug chamfer and 2-flute design, it is suitable for general machining applications

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