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 435P70) 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

Brand

CLEVELAND

Item

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

Technical Specifications

CLEVELAND

Manufacturer Part Number

C55028

Type

H4 / 2B, Plug Chamfer, High Speed Steel 

Flute

4

View Full Spec Sheet

Technical Documents

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CLEVELAND Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

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

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Bridge construction — CLEVELAND Morse-taper shank bridge reamers for enlarging bolt holes in structural steel.

Automotive production — CLEVELAND chucking reamers for precision finishing of engine component bores.

General metalworking — CLEVELAND single-flute countersinks for deburring holes in mild steel parts.

Tool and die making — CLEVELAND interchangeable-pilot counterbores for creating recesses for socket head cap screws.

Maintenance repair — CLEVELAND cobalt aircraft extension drills for drilling hardened steel in equipment repairs.

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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