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CHICAGO-LATROBE 1/4"-28 UNF General Purpose Spiral-Point Tap - General Purpose Spiral-Point Taps
CHICAGO-LATROBEGeneral Purpose Spiral-Point Taps

CHICAGO-LATROBE 1/4"-28 UNF General Purpose Spiral-Point Tap

3G Electric supplies the CHICAGO-LATROBE Spiral Point Tap (1/4"-28 UNF), a general-purpose spiral-point tap with H2 / 2B tolerance, plug chamfer, 3 flutes, and high-speed steel construction (MPN 330115). We interpret…

SKU 3G-OTH-215202

Brand
CHICAGO-LATROBE
Item
1/4"-28 UNF General Purpose Spiral-Point Tap
Part Number
330115
Category
General Purpose Spiral-Point Taps
Available to Order
Also known as:330115CHICAGO-LATROBE
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Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
330115
Type
H2 / 2B, Plug Chamfer, High Speed Steel
Flute
3

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

Product Description

3G Electric supplies the CHICAGO-LATROBE Spiral Point Tap (1/4"-28 UNF), a general-purpose spiral-point tap with H2 / 2B tolerance, plug chamfer, 3 flutes, and high-speed steel construction (MPN 330115). We interpret your demand for precision threading tools across 14 industrial departments—and far more—while our specialist depth in combustion, pumps, and controls anchors trust as an authorised distributor for brands like Schneider, ABB, Siemens, SKF, Festo, Fluke, Interpump, and FBR.

Frequently Asked Questions

What is the CHICAGO-LATROBE Spiral Point Tap 330115 used for?

This tap is used for threading blind or through holes in a wide range of materials. Its spiral-point design pushes chips ahead, making it ideal for production tapping in steel, aluminum, and cast iron. It is commonly used in automotive, aerospace, and general manufacturing applications.

What are the specifications of the CHICAGO-LATROBE Spiral Point Tap 330115?

The tap has a 1/4"-28 UNF thread size, H2 / 2B tolerance, 3-flute design, and plug chamfer. It is made of high-speed steel (HSS) for durability. The manufacturer part number is 330115, and it is a general-purpose spiral-point tap suitable for production threading.

Where to buy CHICAGO-LATROBE taps worldwide?

3G Electric supplies CHICAGO-LATROBE taps worldwide. As a global industrial distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the 330115 spiral point tap.

How to select the right CHICAGO-LATROBE tap for threading?

Select a tap based on thread size, material, and hole type. For blind holes, use a spiral-point tap like the 330115 to push chips forward. Match the thread class (e.g., H2 / 2B) to your tolerance needs. Always use proper cutting fluid and tap speed for the workpiece material.

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.
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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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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

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