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CHICAGO-LATROBE Spiral Point Tap: 1/4"-20 UNC, H3 / 2B, 2 Flute, Bottoming Chamfer - General Purpose Spiral-Point Taps
CHICAGO-LATROBEGeneral Purpose Spiral-Point Taps

CHICAGO-LATROBE Spiral Point Tap: 1/4"-20 UNC, H3 / 2B, 2 Flute, Bottoming Chamfer

The CHICAGO-LATROBE Spiral Point Tap (MPN 357058) is a general purpose spiral-point tap with a 1/4"-20 UNC thread size. It features an H3 / 2B tolerance, bottoming chamfer, 2-flute design, and is made from high speed…

SKU 3G-OTH-214146

Brand
CHICAGO-LATROBE
Item
Spiral Point Tap: 1/4"-20 UNC, H3 / 2B, 2 Flute, Bottoming Chamfer
Category
General Purpose Spiral-Point Taps
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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
357058
Type
H3 / 2B, Bottoming Chamfer, High Speed Steel
Flute
2

Technical Documents

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

Product Description

The CHICAGO-LATROBE Spiral Point Tap (MPN 357058) is a general purpose spiral-point tap with a 1/4"-20 UNC thread size. It features an H3 / 2B tolerance, bottoming chamfer, 2-flute design, and is made from high speed steel. 3G Electric interprets your demand for this cutting tool, sources it from our extensive industrial supply network, and supports your procurement across 14 departments — with specialist depth in combustion, pumps, and controls.

Frequently Asked Questions

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

The CHICAGO-LATROBE Spiral Point Tap is used for threading blind holes in production environments. Its spiral-point design pushes chips forward, preventing clogging. It is ideal for through-hole tapping in steel, aluminum, and other materials, commonly used in automotive, aerospace, and general manufacturing.

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

This tap has a 1/4\"-20 UNC thread, H3 / 2B class of fit, 2 flutes, and a bottoming chamfer. It is made of high-speed steel (HSS) for durability. The manufacturer part number is 357058. It is designed for general-purpose tapping in ferrous and non-ferrous materials.

Where to buy CHICAGO-LATROBE taps in worldwide?

You can source CHICAGO-LATROBE taps worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead times on this and other cutting tools.

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

Select a tap based on thread size, material, and hole type. For through holes, a spiral-point tap like this CHICAGO-LATROBE model pushes chips ahead. For blind holes, use a spiral-flute tap. Match the chamfer (bottoming for shallow holes) and ensure the HSS grade suits your workpiece hardness.

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 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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Compatible alternatives & equivalents

Cross-referenced by specification & description
CHICAGO-LATROBE Spiral Point Tap: 1/4"-28 UNF, H3 / 2B, 2 Flute, Bottoming Chamfer, High Speed Steel (MPN 357173)
CHICAGO-LATROBE
CHICAGO-LATROBE Spiral Point Tap: 1/4"-28 UNF, H3 / 2B, 2 Flute, Bottoming Chamfer, High Speed Steel (MPN 357173)
CHICAGO-LATROBE Spiral Point Tap: #10-24 UNC, H3 / 2B, 2 Flute, Bottoming Chamfer, High Speed Steel (MPN 356712)
CHICAGO-LATROBE
CHICAGO-LATROBE Spiral Point Tap: #10-24 UNC, H3 / 2B, 2 Flute, Bottoming Chamfer, High Speed Steel (MPN 356712)
CHICAGO-LATROBE Spiral Point Tap: 5/16"-24 UNF, H3 / 2B, 2 Flute, Bottoming Chamfer (MPN 357413)
CHICAGO-LATROBE
CHICAGO-LATROBE Spiral Point Tap: 5/16"-24 UNF, H3 / 2B, 2 Flute, Bottoming Chamfer (MPN 357413)
CHICAGO-LATROBE Spiral Point Tap: #10-32 UNF, H3 / 2B, 2 Flute, Bottoming Chamfer, High Speed Steel (MPN 356779)
CHICAGO-LATROBE
CHICAGO-LATROBE Spiral Point Tap: #10-32 UNF, H3 / 2B, 2 Flute, Bottoming Chamfer, High Speed Steel (MPN 356779)
General purpose spiral-flute tap for threading blind holes in materials such as steel and aluminum. The spiral flute design evacuates chips upward to prevent clogging. Features a bottoming chamfer for threading to the bottom of a blind hole. Made from high-speed steel with H3 / 2B tolerance and 3 flutes. Commonly used in general manufacturing and maintenance applications
CHICAGO-LATROBE
General purpose spiral-flute tap for threading blind holes in materials such as steel and aluminum. The spiral flute design evacuates chips upward to prevent clogging. Features a bottoming chamfer for threading to the bottom of a blind hole. Made from high-speed steel with H3 / 2B tolerance and 3 flutes. Commonly used in general manufacturing and maintenance applications
CHICAGO-LATROBE Spiral Point Tap: 1/4"-20 UNC, H3 / 2B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 357041)
CHICAGO-LATROBE
CHICAGO-LATROBE Spiral Point Tap: 1/4"-20 UNC, H3 / 2B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 357041)

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