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Cleveland C55242 straight flute hand tap, silver steel finish, threaded shaft with flutes

Cleveland

Cleveland C55242 Straight Flute Hand Tap 5/8"-18 UNF Bottoming 4 Flutes

SKU CH-W1WA-WCN0Z

A 5/8"-18 UNF bottoming tap with four straight flutes and TiN coating for threading blind holes

  • Product typeTaps
  • Cuts 5/8"-18 UNF threads in blind holes
  • Bottoming chamfer reaches full depth in closed bores
  • High-speed steel with TiN coating resists wear
  • Four straight flutes clear chips efficiently
  • H3 limit and 2B fit ensure accurate threads

Cleveland C55242 Straight Flute Tap

The Cleveland C55242 is a straight flute hand tap designed for cutting 5/8"-18 UNF internal threads. It suits mechanics and machinists who need accurate thread forms in through or blind holes. The bottoming chamfer allows threading close to the bottom of a drilled hole.

High Speed Steel with TiN coating

The tap is manufactured from high speed steel and coated with titanium nitride to resist wear during repeated use. This construction maintains cutting geometry over extended production runs rather than only in short bursts. Right hand cutting action matches standard threading practice.

Thread limit H3 class 2B fit

The H3 thread limit and class 2B fit define the tolerance envelope for the finished thread. Buyers who require a different limit or a looser class of fit cannot use this tap for their application. The 75 percent thread drill size is 14.50 mm.

How it compares

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

Price $39.99
Pricier than about 61% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCLEVELAND
Product typeTaps

Questions about this item

How much heat does the 5/8"-18 UNF tap generate during extended threading?

The high-speed steel body with TiN coating reduces friction, so heat build-up stays low even when cutting 1 1/16 in threads all day.

What drill size must I already own to prepare the 75 percent thread for this tap?

A 14.50 mm drill is required to produce the correct 75 percent thread depth before using the 5/8"-18 UNF bottoming tap.

Will the H3 thread limit on this tap match the 2B class nuts I already use?

Yes, the H3 limit is designed for a 2B class of fit, so it threads cleanly into existing 2B UNF hardware.

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