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CHICAGO-LATROBE Tap Kit: 1/4"-28 UNF, H3 / 3B, 4 Flute, LH - Left-Hand Three-Piece Hand Tap Sets
CHICAGO-LATROBELeft-Hand Three-Piece Hand Tap Sets

CHICAGO-LATROBE Tap Kit: 1/4"-28 UNF, H3 / 3B, 4 Flute, LH

CHICAGO-LATROBE Left-Hand Three-Piece Hand Tap Sets.

SKU 3G-OTH-314888

Brand
CHICAGO-LATROBE
Item
Tap Kit: 1/4"-28 UNF, H3 / 3B, 4 Flute, LH
Part Number
318779
Category
Left-Hand Three-Piece Hand Tap Sets
Available to Order
Also known as:318779CHICAGO-LATROBE
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
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Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
318779

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

Product Description

CHICAGO-LATROBE Left-Hand Three-Piece Hand Tap Sets.

Frequently Asked Questions

What is a CHICAGO-LATROBE left-hand tap kit used for?

This CHICAGO-LATROBE tap kit is used to cut left-hand internal threads in metal parts, typically for applications where reverse rotation or vibration could loosen standard right-hand threads. It is common in automotive, aerospace, and industrial maintenance.

What are the specifications of the CHICAGO-LATROBE 318779 tap kit?

The CHICAGO-LATROBE 318779 tap kit includes one bottoming tap with 1/4"-28 UNF thread, H3 / 3B tolerance, 4 flute, left-hand cut, made from high-speed steel. It is designed for through-hole or blind-hole threading in ferrous materials.

Where to buy CHICAGO-LATROBE tap kits worldwide?

3G Electric supplies CHICAGO-LATROBE tap kits worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on the 318779 left-hand tap kit.

How to select the correct tap kit for left-hand threads?

To select a left-hand tap kit like the CHICAGO-LATROBE 318779, match the thread size (1/4"-28 UNF), direction (left-hand), and tolerance class (H3 / 3B) to your application. Use a bottoming tap for blind holes; a taper or plug tap for through holes.

Used in

Common applications for CHICAGO-LATROBE
Aerospace manufacturing — Chicago-Latrobe NAS-spec jobber-length drill bits (e.g., MPN 42631) for drilling holes in airframe components.
Metal fabrication — Chicago-Latrobe single-flute countersinks (e.g., MPN 56774) for deburring and chamfering holes in steel plates.
Machine shop — Chicago-Latrobe 82° countersinks (e.g., MPN 56738) for creating flush-mount recesses for flat-head screws in assemblies.
Maintenance and repair — Chicago-Latrobe 90° countersinks (e.g., MPN 56760) for chamfering holes and removing burrs on industrial equipment.
Automotive production — Chicago-Latrobe HSS drill bits for holemaking in engine blocks and chassis components.
General machining — Chicago-Latrobe countersinks in various body diameters for chamfering and deburring in job shops.
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CHICAGO-LATROBE Products

3G Electric supplies CHICAGO-LATROBE left-hand three-piece hand tap sets. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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