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CLEVELAND Straight Flute Tap: 1 3/8"-6 UNC, H4 / 2B, 4 Flute, Plug Chamfer - General Purpose Hand Taps
CLEVELANDGeneral Purpose Hand Taps

CLEVELAND Straight Flute Tap: 1 3/8"-6 UNC, H4 / 2B, 4 Flute, Plug Chamfer

The CLEVELAND Straight Flute Tap (SKU 3G-OTH-221605) is a General Purpose Hand Tap with a 1 3/8"-6 UNC thread size. It features an H4 / 2B tolerance, Plug Chamfer, 4 flutes, and is made of High Speed Steel (MPN C55028).

SKU 3G-OTH-221605

Also listed as: C 55028 · C-55028

Brand
CLEVELAND
Item
Straight Flute Tap: 1 3/8"-6 UNC, H4 / 2B, 4 Flute, Plug Chamfer
Part Number
C55028
Category
General Purpose Hand Taps
Available to Order
Also known as:C55028CLEVELAND
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Local office
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Phone
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Technical Specifications

CLEVELAND
Manufacturer Part Number
C55028
Type
H4 / 2B, Plug Chamfer, High Speed Steel
Flute
4

Technical Documents

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CLEVELAND Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The CLEVELAND Straight Flute Tap (SKU 3G-OTH-221605) is a General Purpose Hand Tap with a 1 3/8"-6 UNC thread size. It features an H4 / 2B tolerance, Plug Chamfer, 4 flutes, and is made of High Speed Steel (MPN C55028).

Frequently Asked Questions

What is the CLEVELAND Straight Flute Tap used for?

The CLEVELAND Straight Flute Tap is a general-purpose hand tap designed for cutting internal threads in metal. It is commonly used in maintenance, repair, and production environments for creating UNC threads, such as the 1 3/8"-6 UNC size, in various materials.

What are the specifications of the CLEVELAND Straight Flute Tap?

This CLEVELAND tap has a 1 3/8"-6 UNC thread size, H4 / 2B tolerance, 4 flutes, and a plug chamfer. It is made from high-speed steel and is identified by manufacturer part number C55028. These specs ensure accurate thread cutting in general-purpose applications.

Where to buy the CLEVELAND Straight Flute Tap worldwide?

You can source the CLEVELAND Straight Flute Tap (MPN C55028) through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring you receive the correct tap for your threading needs.

How to select the right CLEVELAND Straight Flute Tap?

Select the CLEVELAND Straight Flute Tap based on thread size, tolerance class, and chamfer type. For UNC threads like 1 3/8"-6, choose a plug chamfer for through holes. Ensure the tap material (high-speed steel) matches your workpiece hardness. Consult a threading guide for optimal results.

Used in

Common applications for CLEVELAND
Aerospace assembly — Cleveland NAS 907 Type J aircraft-extension drill bits for long-reach drilling in confined airframe structures.
General machining — Cleveland AlTiN-coated carbide square end mills for milling steel and stainless steel components.
Metal fabrication — Cleveland 82° single-flute countersinks for seating flat-head screws in inch-based assemblies.
Maintenance and repair — Cleveland black oxide high-speed steel countersinks for deburring and chamfering holes in plant equipment.
Automotive and engine work — Cleveland cobalt aircraft-extension drills for drilling hard alloys in restricted engine bay spaces.
Job shop production — Cleveland carbide single-flute countersinks for high-speed countersinking in aluminum and non-ferrous parts.
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CLEVELAND Products

3G Electric supplies CLEVELAND 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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