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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

SKU 3G-OTH-314888

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

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 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 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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