CHICAGO-LATROBEOversized Spiral-Point Taps

CHICAGO-LATROBE Spiral Point Tap: 1/4"-28 UNF, H11 / 1B, 3 Flute, Plug Chamfer

SKU 3G-OTH-251336

Brand

CHICAGO-LATROBE

Item

Spiral Point Tap: 1/4"-28 UNF, H11 / 1B, 3 Flute, Plug Chamfer

Technical Specifications

CHICAGO-LATROBE

Manufacturer Part Number

313501

Type

H11 / 1B, Plug Chamfer, High Speed Steel 

Flute

3

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Technical Documents

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CHICAGO-LATROBE Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

The CHICAGO-LATROBE Spiral Point Tap (SKU 449T46, MPN 313501) is an oversized spiral-point tap with a 1/4"-28 UNF thread, featuring a H11 / 1B tolerance, plug chamfer, and 3-flute high-speed steel construction. 3G Electric interprets this demand and sources the genuine OEM part, backed by specialist expertise across 14 industrial departments — including cutting tools — to ensure you get the right solution.

Frequently Asked Questions

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

A CHICAGO-LATROBE spiral point tap is used for threading through-holes in metal, directing chips forward to prevent clogging. It is ideal for production tapping in steel, aluminum, and alloys, commonly used in automotive, aerospace, and general manufacturing applications.

What are the specifications of the CHICAGO-LATROBE spiral point tap MPN 313501?

The CHICAGO-LATROBE spiral point tap MPN 313501 has a thread size of 1/4"-28 UNF, with an H11 / 1B tolerance. It features 3 flutes, a plug chamfer, and is made of high-speed steel. This oversized tap is designed for precise threading in through-hole applications.

Where to buy CHICAGO-LATROBE taps 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 the MPN 313501 and other models.

How to select the right CHICAGO-LATROBE tap for a job?

To select the right CHICAGO-LATROBE tap, match the thread size (e.g., 1/4"-28 UNF) and tolerance (H11 / 1B) to your hole specifications. For through-holes, a spiral point tap with plug chamfer is recommended. Consider material hardness and tap flute count for chip evacuation.

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 oversized 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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