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CHICAGO-LATROBE Straight Flute Tap: 5/8"-11 UNC - General Purpose Hand Taps
CHICAGO-LATROBEGeneral Purpose Hand Taps

CHICAGO-LATROBE Straight Flute Tap: 5/8"-11 UNC

The CHICAGO-LATROBE Straight Flute Tap (MPN 306978) is a general-purpose hand tap with a 5/8"-11 UNC thread size, featuring an H5 / 2B tolerance, 4 flutes, and a bottoming chamfer.

SKU 3G-OTH-221683

Brand
CHICAGO-LATROBE
Item
Straight Flute Tap: 5/8"-11 UNC
Part Number
306978
Category
General Purpose Hand Taps
Available to Order
Also known as:306978CHICAGO-LATROBE
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Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
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Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
306978
Type
H5 / 2B, Bottoming Chamfer
Flute
4

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

Product Description

The CHICAGO-LATROBE Straight Flute Tap (MPN 306978) is a general-purpose hand tap with a 5/8"-11 UNC thread size, featuring an H5 / 2B tolerance, 4 flutes, and a bottoming chamfer.

Frequently Asked Questions

What is the CHICAGO-LATROBE Straight Flute Tap 306978 used for?

This CHICAGO-LATROBE straight flute tap is used for cutting internal threads in metal workpieces. It is a general-purpose hand tap with a bottoming chamfer, ideal for threading blind holes to the bottom. Common applications include maintenance, repair, and production in automotive, manufacturing, and metalworking industries.

What are the specifications of the CHICAGO-LATROBE Straight Flute Tap 306978?

The CHICAGO-LATROBE tap has a thread size of 5/8"-11 UNC, with an H5 limit and 2B class of fit. It features 4 flutes and a bottoming chamfer. The manufacturer part number is 306978. This tap is designed for general-purpose hand threading in ferrous and non-ferrous materials.

Where to buy CHICAGO-LATROBE Straight Flute Tap 306978 worldwide?

You can source the CHICAGO-LATROBE Straight Flute Tap 306978 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply this tap to procurement teams and engineers globally.

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

To select the correct CHICAGO-LATROBE tap, match the thread size (e.g., 5/8"-11 UNC) and chamfer type to your hole condition. Use a bottoming chamfer for blind holes and a taper chamfer for through holes. Ensure the tap's H limit and class of fit (e.g., H5/2B) align with your required thread tolerance. Consult a tap selection guide for material-specific recommendations.

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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