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Cleveland straight-flute hand tap, 3/4"-16 UNF, TiN coated high-speed steel, 4.25 in overall length

Cleveland

Cleveland C55246 Straight Flute Hand Tap 3/4"-16 UNF

SKU CH-KW92-ZJ4B6

Straight-flute hand tap cuts 3/4"-16 UNF threads in a 4.25 in overall length with H3 limit and TiN-coated high-speed steel

  • Product typeTaps
  • Straight-flute design starts threads cleanly in through-holes
  • 3/4"-16 UNF size matches standard fine-thread fasteners
  • High-speed steel with TiN coating resists wear during repeated cuts
  • 25 in overall length gives leverage for hand tapping
  • 75 % thread drill size 17.50 mm ensures proper hole preparation

Cleveland C55246 Straight Flute Tap

The Cleveland C55246 is a straight-flute hand tap designed to cut 3/4"-16 UNF threads in a single pass. It is built from high-speed steel with a TiN coating for wear resistance and suits maintenance, repair and light production work where a bottoming tap is required.

Replaces worn or undersized taps

A new tap restores clean thread geometry when an existing tool has dulled or when a previous tap left an incomplete 75 percent thread. The jump is worth it when thread-gauge checks show a 2B class-of-fit failure or when the 17.50 mm drill size no longer produces acceptable engagement.

Fits standard tap handles and holders

The 4.25 in overall length and right-hand cut work with common T-handle wrenches and CNC toolholders without adapters. The H3 limit and 2 in thread length free up chip clearance in through-holes and reduce the risk of bottoming out in blind holes.

How it compares

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

Price $50.99
Pricier than about 68% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCLEVELAND
Product typeTaps

Questions about this item

What drill-bit diameter do I need for the 75 percent thread depth on this 3/4"-16 UNF tap?

Use a 17.50 mm drill bit to achieve the 75 percent thread depth specified for this tap.

How do I start the tap straight so the first threads do not cross-thread in the hole?

Apply steady axial pressure while turning the tap wrench slowly; keep the tap aligned with the hole axis and reverse a quarter-turn every few revolutions to break chips.

When will the TiN coating on this high-speed-steel tap wear enough to require replacement?

The TiN coating extends tool life; replace the tap when thread quality degrades or the cutting edges show visible rounding after repeated use.

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