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Three-piece straight-flute hand tap set #4-48 bright finish high-speed steel

Cleveland

Cleveland C54156 Straight Flute Hand Tap #4-48 3-Piece Kit

SKU CH-XDQD-D69NS

Three-piece #4-48 UNF hand tap kit in high-speed steel with taper, plug and bottoming taps

  • Three-piece kit provides taper, plug, and bottoming taps for complete threading
  • High-speed steel construction delivers durability for repeated hand-tapping operations
  • #4-48 UNF fine thread produces precise 2B class fit for secure assemblies
  • 75 percent thread drill size of 2.32 mm ensures accurate hole preparation
  • Bright uncoated finish suits general-purpose use on ferrous and non-ferrous materials

Cleveland C54156 #4-48 Tap Kit

This three-piece kit contains taper, plug, and bottoming straight-flute hand taps cut to a #4-48 UNF thread standard. The high-speed steel tools are supplied bright without coating and are ground to a Class 2B fit with an H2 thread limit. They suit maintenance technicians and hobbyists cutting new internal threads or chasing damaged ones in ferrous and non-ferrous metals.

Verify Hole Size And Thread Standard

Before ordering confirm the workpiece material and the required thread specification match #4-48 UNF. The taps require a 75 percent thread drill size of 2.32 mm to produce the correct minor diameter for a Class 2B fit. Ensure your drills are sharp and accurately sized. Right-hand thread direction is standard but verify the application does not call for left-hand threads.

High Speed Steel Bright Finish

The uncoated high-speed steel construction resists wear in general-purpose tapping while the bright finish helps chips evacuate cleanly. Three straight flutes provide adequate chip space for through and blind holes when used with proper lubrication. The 9/16 inch thread length and 1 7/8 inch overall length give sufficient reach for typical shallow holes. Each tap in the set serves a distinct stage from starting to finishing the thread.

How it compares

Measured against everything we stock in Bits, Hole Saws & Accessory Kits, at today’s prices. Recalculated every night.

Price $18.99
Cheaper than about 66% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCLEVELAND

Questions about this item

Does the Cleveland C54156 kit include all three taps or must I buy them separately?

The kit contains taper, plug and bottoming taps in one pack so no additional pieces are required.

Should I choose the #4-48 UNF size or a different thread standard for my application?

Select this kit only when the job calls for a #4-48 UNF thread with H2 limit and 2B class of fit.

What does the 75 percent thread and 2.32 mm drill size mean when I cut threads in steel?

Drill a 2.32 mm hole to produce a 75 percent thread depth that matches the H2 limit for a standard 2B fit.

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