CHICAGO-LATROBEGeneral Purpose Spiral-Point Taps

CHICAGO-LATROBE Spiral Point Tap: 5/16"-18 UNC, H5 / 2B-3B, 2 Flute, Plug Chamfer

The CHICAGO-LATROBE Spiral Point Tap (MPN 357306) is a general purpose spiral-point tap with a 5/16"-18 UNC thread size. It features an H5 / 2B-3B tolerance, 2-flute design, plug chamfer, and is made of high-speed steel.

SKU 3G-OTH-216133

Brand

CHICAGO-LATROBE

Item

Spiral Point Tap: 5/16"-18 UNC, H5 / 2B-3B, 2 Flute, Plug Chamfer

Technical Specifications

CHICAGO-LATROBE

Manufacturer Part Number

357306

Type

H5 / 2B-3B, Plug Chamfer, High Speed Steel 

Flute

2

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Technical Documents

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CHICAGO-LATROBE Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

Frequently Asked Questions

What is the CHICAGO-LATROBE Spiral Point Tap 357306 used for?

This spiral point tap is designed for through-hole threading in ferrous and non-ferrous materials. It pushes chips forward, reducing chip clogging and breakage, making it ideal for production tapping in automotive, aerospace, and general manufacturing applications.

What are the specifications of the CHICAGO-LATROBE Spiral Point Tap 357306?

The tap has a 5/16"-18 UNC thread, H5 tolerance for 2B-3B classes, 2 flutes, plug chamfer, and is made from high-speed steel. The manufacturer part number is 357306. It is a general-purpose spiral-point tap for through-hole threading.

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 time on the 357306 spiral point tap.

How to select the right CHICAGO-LATROBE tap for through holes?

For through holes, choose a spiral point tap like the 357306 to push chips forward. Match thread size (5/16"-18 UNC), tolerance class (H5 for 2B-3B), and material (high-speed steel for general use). Ensure chamfer type (plug) suits your hole depth and material 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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