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CHICAGO-LATROBE 1/4"-20 UNC Straight Flute Hand Tap - General Purpose Hand Taps
CHICAGO-LATROBEGeneral Purpose Hand Taps

CHICAGO-LATROBE 1/4"-20 UNC Straight Flute Hand Tap

The CHICAGO-LATROBE Straight Flute Hand Tap (SKU 173145, MPN 173145) is a general-purpose hand tap with a 1/4"-20 UNC thread size. It features an H3 / 2B tolerance, a plug chamfer, and 3 flutes for standard threading…

SKU 3G-OTH-221785

Brand
CHICAGO-LATROBE
Item
1/4"-20 UNC Straight Flute Hand Tap
Part Number
173145
Category
General Purpose Hand Taps
Available to Order
Also known as:173145CHICAGO-LATROBE
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Local availability & support — Singapore

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

CHICAGO-LATROBE
Manufacturer Part Number
173145
Type
H3 / 2B, Plug Chamfer
Flute
3

Technical Documents

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

Product Description

The CHICAGO-LATROBE Straight Flute Hand Tap (SKU 173145, MPN 173145) is a general-purpose hand tap with a 1/4"-20 UNC thread size. It features an H3 / 2B tolerance, a plug chamfer, and 3 flutes for standard threading applications.

Frequently Asked Questions

What is the CHICAGO-LATROBE Straight Flute Hand Tap used for?

This hand tap is used for cutting internal threads in metal components. It is ideal for general-purpose threading applications in maintenance, repair, and production environments, particularly for creating 1/4"-20 UNC threads in through or blind holes.

What are the specifications of the CHICAGO-LATROBE 173145 hand tap?

The CHICAGO-LATROBE 173145 is a straight flute hand tap with a 1/4"-20 UNC thread size, H3 / 2B tolerance, 3 flutes, and a plug chamfer. It is designed for general-purpose threading and is made by CHICAGO-LATROBE.

Where to buy CHICAGO-LATROBE hand taps worldwide?

You can source CHICAGO-LATROBE hand taps worldwide through 3G Electric. We handle full logistics, customs clearance, and delivery to global destinations. Contact us for availability and lead times on this and other industrial tooling.

How to select the correct hand tap for UNC threads?

Select a hand tap that matches the thread size and pitch, such as 1/4"-20 UNC. For general use, choose a plug chamfer tap with H3 tolerance for standard fit. Ensure the tap has the correct number of flutes for chip evacuation in your material.

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

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