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CHICAGO-LATROBE Left-Hand Thread Tap - Left-Hand Thread Taps
CHICAGO-LATROBELeft-Hand Thread Taps

CHICAGO-LATROBE Left-Hand Thread Tap

The CHICAGO-LATROBE Straight Flute Tap (SKU 317755, MPN 317755) is a left-hand thread tap for 1/2"-13 UNC threads, featuring an H3 / 2B tolerance, plug chamfer, and 4 flutes. 3G Electric interprets this demand and…

SKU 3G-OTH-265150

Brand
CHICAGO-LATROBE
Item
Left-Hand Thread Tap
Category
Left-Hand Thread Taps
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
317755
Type
H3 / 2B, Plug Chamfer, LH
Flute
4

Technical Documents

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

Product Description

The CHICAGO-LATROBE Straight Flute Tap (SKU 317755, MPN 317755) is a left-hand thread tap for 1/2"-13 UNC threads, featuring an H3 / 2B tolerance, plug chamfer, and 4 flutes. 3G Electric interprets this demand and sources the genuine OEM tool, backed by specialist expertise across 14 industrial departments — including cutting tools — to ensure you get the right tap for your threading application.

Frequently Asked Questions

What is a CHICAGO-LATROBE Straight Flute Tap used for?

This left-hand thread tap is used to cut internal UNC threads in metal parts, typically for maintenance or production where reverse-thread fasteners are required. It is common in automotive, aerospace, and industrial machinery applications.

What are the specifications of the CHICAGO-LATROBE 317755 tap?

The CHICAGO-LATROBE 317755 is a 1/2"-13 UNC straight flute tap with H3 / 2B tolerance, 4 flutes, plug chamfer, and left-hand thread. It is designed for through-hole or blind-hole threading in ferrous and non-ferrous materials.

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 to your facility, regardless of location.

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

For left-hand threads, ensure the tap is marked LH and matches the thread size and pitch (e.g., 1/2"-13 UNC). Choose plug chamfer for general-purpose threading. Verify material compatibility and tolerance class (H3 / 2B) for proper fit.

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

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Compatible alternatives & equivalents

Cross-referenced by specification & description
Left-hand thread tap for cutting internal UNC threads. Features H3 / 2B tolerance, 4 straight flutes, and plug chamfer for through-hole threading. Suitable for general-purpose threading in ferrous and non-ferrous materials
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Left-hand thread tap for cutting internal UNC threads. Features H3 / 2B tolerance, 4 straight flutes, and plug chamfer for through-hole threading. Suitable for general-purpose threading in ferrous and non-ferrous materials
CHICAGO-LATROBE Straight Flute Tap: 3/4"-10 UNC, H3 / 2B, 4 Flute, Plug Chamfer, LH (MPN 317995)
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CHICAGO-LATROBE Straight Flute Tap: 3/4"-10 UNC, H3 / 2B, 4 Flute, Plug Chamfer, LH (MPN 317995)
General purpose hand tap for cutting internal threads in metal components. Features a 1/2"-13 UNC thread size, H3/2B class of fit, 4-flute design, and plug chamfer for through-hole or blind-hole threading. Suitable for manual or machine use in industrial maintenance and production applications
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General purpose hand tap for cutting internal threads in metal components. Features a 1/2"-13 UNC thread size, H3/2B class of fit, 4-flute design, and plug chamfer for through-hole or blind-hole threading. Suitable for manual or machine use in industrial maintenance and production applications
General purpose hand tap for cutting internal threads in metal components. Creates 1/2"-13 UNC threads with 2B class fit. Straight flute design with 4 flutes and plug chamfer suitable for through-hole or blind-hole threading in ferrous and non-ferrous materials
CHICAGO-LATROBE
General purpose hand tap for cutting internal threads in metal components. Creates 1/2"-13 UNC threads with 2B class fit. Straight flute design with 4 flutes and plug chamfer suitable for through-hole or blind-hole threading in ferrous and non-ferrous materials

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Left-hand thread tap for cutting internal UNF threads in metal components. Features H3 / 2B tolerance, 4 flutes, and plug chamfer. Suitable for through or blind holes requiring left-hand threads in reverse-thread fastener applications
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Left-hand thread tap for cutting internal UNF threads in metal components. Features H3 / 2B tolerance, 4 flutes, and plug chamfer. Suitable for through or blind holes requiring left-hand threads in reverse-thread fastener applications
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Left-hand thread tap for cutting internal threads in blind or through holes. Features H3 / 2B tolerance, 4 flutes, and plug chamfer. Suitable for maintenance, repair, and production applications requiring left-hand threads
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