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Cleveland spiral point tap plug, gold TiN finish, three flutes

Cleveland

Cleveland C55333 Spiral Point Tap Plug 3 Flutes 1/2-13 UNC HSS TiN

SKU CH-YH6H-22KZS

Cuts 1/2-13 UNC threads with a spiral-point plug tap made from TiN-coated high-speed steel

  • Spiral point pushes chips forward for cleaner threads
  • 1/2-13 UNC thread size fits standard coarse-pitch holes
  • High-speed steel with TiN coating resists wear
  • Three flutes balance strength and chip clearance
  • H5 thread limit suits 2B-3B class of fit

Thread specification

The Cleveland C55333 is a spiral-point tap designed to cut internal threads in through-holes. Made from high-speed steel with a TiN coating, it has three flutes and a right-hand thread form. The plug chamfer allows easier starting in a pre-drilled hole. It produces a 1/2-13 UNC thread to class 2B-3B fit.

Application fit

This tap suits machinists and maintenance teams cutting 1/2-13 UNC threads in steel or similar materials where a through-hole exists. The spiral point pushes chips ahead of the cut, reducing clogging in deep holes. Buyers who need a bottoming tap for blind holes or a different thread pitch should select another tool.

Critical spec

The thread limit is H5, which determines the pitch-diameter tolerance and the resulting class of fit. Using a tap with a different limit will produce threads that may not gauge correctly for 2B-3B requirements. Verify the limit matches the drawing before purchase.

How it compares

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

Price $13.99
Cheaper than about 80% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCLEVELAND

Questions about this item

Will the HSS TiN coating on this 1/2-13 UNC tap wear out and require resharpening?

The TiN coating extends tool life in steel, but the high-speed steel cutting edges will eventually dull and need professional resharpening or replacement.

What limits continuous threading with this H5-limit tap?

Chip evacuation in deep holes is the primary limit; the spiral point pushes chips ahead, but a 3 3/8 in overall length restricts reach in blind holes.

How much heat builds up when running this tap all day in production?

High-speed steel with TiN coating handles typical cutting temperatures, but sustained high-speed use without coolant will generate significant heat at the cutting edges.

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