CHICAGO-LATROBEOversized Spiral-Flute Taps

CHICAGO-LATROBE Spiral Flute Tap: 5/16"-24 UNF, H11 / 1B, 3 Flute, Semi-Bottoming Chamfer (MPN 313583)

SKU 3G-OTH-211273

Brand

CHICAGO-LATROBE

Item

Spiral Flute Tap: 5/16"-24 UNF, H11 / 1B, 3 Flute, Semi-Bottoming Chamfer

Technical Specifications

CHICAGO-LATROBE

Manufacturer Part Number

313583

Type

H11 / 1B, Semi-Bottoming Chamfer 

Flute

3

View Full Spec Sheet

Technical Documents

No technical documents available for this product.

Request documentation →

Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.

Talk to an engineer

Ask a question

CHICAGO-LATROBE Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

The CHICAGO-LATROBE Spiral Flute Tap (5/16"-24 UNF) is an oversized spiral-flute tap with an H11 / 1B tolerance, 3 flutes, and a semi-bottoming chamfer (MPN 313583). We interpret your threading requirements, source this genuine OEM tool, and support your production across 14 industrial departments — with specialist depth in combustion, pumps, and controls as an authorised distributor.

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 flute tap used for?

A CHICAGO-LATROBE spiral flute tap is used for threading blind holes in materials like steel and aluminum. The spiral flutes push chips upward and out of the hole, preventing clogging. This 5/16"-24 UNF tap with a semi-bottoming chamfer is ideal for threading close to the bottom of a hole.

What are the specifications of the CHICAGO-LATROBE 313583 tap?

The CHICAGO-LATROBE 313583 is a spiral flute tap with a 5/16"-24 UNF thread, H11 / 1B tolerance, 3 flutes, and a semi-bottoming chamfer. It is an oversized tap designed for threading blind holes in various materials. These specs ensure precise thread fit and chip evacuation.

Where to buy CHICAGO-LATROBE taps in worldwide?

3G Electric supplies CHICAGO-LATROBE taps worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source and deliver genuine cutting tools like the 313583 spiral flute tap to any location. Contact us for availability and delivery to your region.

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

To select the right CHICAGO-LATROBE tap, match the thread size (e.g., 5/16"-24 UNF), chamfer type (semi-bottoming for blind holes), and flute style (spiral for chip evacuation). Consider material hardness and hole depth. For oversized taps like the H11 / 1B, ensure the pre-drilled hole diameter is correct.

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-flute taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

Browse all CHICAGO-LATROBE products →Contact our engineers →