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CHICAGO-LATROBE Spiral Point Tap: 1/4"-20 UNC, H3 / 2B, 3 Flute, Plug Chamfer (MPN 280306) - General Purpose Spiral-Point Taps
CHICAGO-LATROBEGeneral Purpose Spiral-Point Taps

CHICAGO-LATROBE Spiral Point Tap: 1/4"-20 UNC, H3 / 2B, 3 Flute, Plug Chamfer (MPN 280306)

CHICAGO-LATROBE General Purpose Spiral-Point Taps.

SKU 3G-OTH-215649

Brand
CHICAGO-LATROBE
Item
Spiral Point Tap: 1/4"-20 UNC, H3 / 2B, 3 Flute, Plug Chamfer
Category
General Purpose Spiral-Point Taps
Available to Order
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Technical specs
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
280306

Technical Documents

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

Product Description

CHICAGO-LATROBE General Purpose Spiral-Point Taps.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

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, preventing clogging and enabling faster production. It is ideal for general-purpose tapping in steel, aluminum, and other machinable materials across industrial maintenance and manufacturing.

What are the specifications of the CHICAGO-LATROBE 280306 tap?

The CHICAGO-LATROBE 280306 is a 1/4"-20 UNC spiral point tap with H3 / 2B tolerance, 3 flutes, and a plug chamfer. It is designed for through-hole threading and is made from high-speed steel for durability. This general-purpose tap suits manual or CNC applications.

Where to buy CHICAGO-LATROBE taps in worldwide?

3G Electric supplies CHICAGO-LATROBE taps worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver genuine CHICAGO-LATROBE cutting tools to your facility. Contact us for pricing and lead time on the 280306 spiral point tap.

How to select the right spiral point tap for a job?

Select a spiral point tap like the CHICAGO-LATROBE 280306 for through-hole threading where chip evacuation is critical. Match the tap size (1/4"-20 UNC), thread class (2B), and chamfer (plug) to your hole and material. For blind holes, consider a spiral flute tap instead.

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
General purpose spiral point tap for through-hole threading in ferrous and non-ferrous materials. Features 1/4"-20 UNC thread, H5 tolerance for 2B-3B class fit, 3 flutes, and plug chamfer. Designed for applications requiring efficient chip evacuation
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General purpose spiral point tap for through-hole threading in ferrous and non-ferrous materials. Features 1/4"-20 UNC thread, H5 tolerance for 2B-3B class fit, 3 flutes, and plug chamfer. Designed for applications requiring efficient chip evacuation
General purpose spiral-point tap for threading through-holes in ferrous and non-ferrous materials. Features a 5/16"-24 UNF thread size with H3 / 2B tolerance, 3 flutes, and a plug chamfer. The spiral-point design pushes chips forward, enabling efficient chip evacuation during production tapping
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General purpose spiral-point tap for threading through-holes in ferrous and non-ferrous materials. Features a 5/16"-24 UNF thread size with H3 / 2B tolerance, 3 flutes, and a plug chamfer. The spiral-point design pushes chips forward, enabling efficient chip evacuation during production tapping
General purpose spiral-point tap for through-hole threading in ferrous and non-ferrous materials. Size 5/16"-18 UNC with H3/2B tolerance, 3 flutes, and plug chamfer. Suitable for manufacturing and maintenance applications
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General purpose spiral-point tap for through-hole threading in ferrous and non-ferrous materials. Size 5/16"-18 UNC with H3/2B tolerance, 3 flutes, and plug chamfer. Suitable for manufacturing and maintenance applications
CHICAGO-LATROBE Spiral Point Tap: 3/8"-24 UNF, H3 / 2B, 3 Flute, Plug Chamfer (MPN 280652)
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CHICAGO-LATROBE Spiral Point Tap: 3/8"-24 UNF, H3 / 2B, 3 Flute, Plug Chamfer (MPN 280652)
CHICAGO-LATROBE Spiral Point Tap: 1/2"-20 UNF, H3 / 2B, 3 Flute, Plug Chamfer (MPN 280901)
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CHICAGO-LATROBE Spiral Point Tap: 1/2"-20 UNF, H3 / 2B, 3 Flute, Plug Chamfer (MPN 280901)
General purpose spiral point tap for threading blind or through holes in ferrous and non-ferrous materials. Features a 1/4"-28 UNF thread, H3 / 2B tolerance, 3-flute design, and plug chamfer for efficient chip evacuation in manufacturing and maintenance applications
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General purpose spiral point tap for threading blind or through holes in ferrous and non-ferrous materials. Features a 1/4"-28 UNF thread, H3 / 2B tolerance, 3-flute design, and plug chamfer for efficient chip evacuation in manufacturing and maintenance applications

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