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CHICAGO-LATROBE Spiral Point Tap: 1/4"-28 UNF, H3 / 2B, 2 Flute, Plug Chamfer - Low-Shear Spiral-Point Taps
CHICAGO-LATROBELow-Shear Spiral-Point Taps

CHICAGO-LATROBE Spiral Point Tap: 1/4"-28 UNF, H3 / 2B, 2 Flute, Plug Chamfer

SKU 3G-OTH-217696

Brand
CHICAGO-LATROBE
Item
Spiral Point Tap: 1/4"-28 UNF, H3 / 2B, 2 Flute, Plug Chamfer
Category
Low-Shear Spiral-Point Taps
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Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
330186
Type
H3 / 2B, Plug Chamfer, High Speed Steel
Flute
2
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CHICAGO-LATROBE Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is a CHICAGO-LATROBE spiral point tap used for?

A CHICAGO-LATROBE spiral point tap is used for through-hole threading in metalworking. Its spiral-point design pushes chips ahead, reducing chip clogging and enabling faster production. It is commonly applied in automotive, aerospace, and general machining operations where clean, accurate threads are required.

What are the specifications of the CHICAGO-LATROBE 330186 tap?

The CHICAGO-LATROBE 330186 is a 1/4\"-28 UNF spiral point tap with H3 / 2B tolerance, 2 flutes, and a plug chamfer. It is made from high speed steel for durability. This tap is designed for through-hole threading in ferrous and non-ferrous materials.

Where to buy CHICAGO-LATROBE taps in worldwide?

3G Electric supplies CHICAGO-LATROBE taps worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on the 330186 spiral point tap. We source genuine industrial cutting tools across 14 departments to meet your production needs.

How to select the right spiral point tap for through holes?

Select a spiral point tap based on thread size, pitch, and material. For through holes, a plug chamfer with 2-3 threads of chamfer is typical. Ensure the tap has the correct tolerance class (e.g., H3 / 2B) for your application. CHICAGO-LATROBE taps are a reliable choice for consistent thread quality.

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.

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