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Cleveland straight flute hand tap M20x2.50 bright finish 50.8mm thread length

Cleveland

Cleveland C54864 Straight Flute Hand Tap M20x2.50 50.8mm

SKU CH-WT67-9MXWH

Cuts M20×2.50 metric threads with a 50.8 mm thread length and 75 % drill size 17.50 mm

  • Product typeTaps
  • M20 x 2.50 metric thread cuts standard coarse threads
  • Straight flute design clears chips in through holes
  • High-speed steel construction resists wear during hand tapping
  • 8 mm thread length reaches deep into workpieces
  • 75 % thread engagement with 17.50 mm drill size

Thread Cutting Tool for M20x2.50 Holes

The Cleveland C54864 is a straight flute hand tap designed for creating internal threads in a metric M20 size with a 2.50 pitch. It is made from high speed steel with a bright uncoated finish and features a right-hand thread direction. The thread limit is D7 for a 6H class of fit.

Manual Operation Thermals and Power

As a hand tool, this tap generates no operational noise and draws no electrical power during use. Heat is produced only through friction at the cutting edges and is managed by the operator's speed and the application of cutting fluid. There are no thermal limits or cooling requirements beyond standard machining practice.

Replaces Worn or Missing M20 Taps

This tap replaces a previous M20x2.50 tool that has become dull, chipped or lost, restoring the ability to cut accurate 6H class threads. The jump is worth it when thread quality has degraded or when a D7 limit is specifically required for the fit. It is not for powered tapping heads or for thread sizes other than M20x2.50.

How it compares

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

Price $59.99
Pricier than about 72% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCLEVELAND
Product typeTaps

Questions about this item

How do I start the M20x2.5 tap straight in the 17.50 mm drilled hole?

Drill the 17.50 mm hole to the full thread depth, then enter the taper lead of the tap squarely; the most common error is tilting the tap on the first turn, which cuts an oversized or crossed thread.

When will the uncoated high-speed steel tap need replacement?

Replace it once the cutting edges dull enough to produce rough flanks or require excessive torque; no coating means wear appears sooner than on coated taps, so inspect threads after each batch of holes.

At what point does the 50.8 mm thread length limit how deep I can tap in one pass?

The 50.8 mm thread length is the maximum continuous depth the tap can cut; for deeper holes you must back the tap out repeatedly to clear chips or use a bottoming tap after the taper tap reaches this limit.

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