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Bright uncoated M3x0.5 thread forming tap, 49.21 mm overall length, 7.94 mm thread length

Cleveland

Cleveland C59421 Thread Forming Tap M3x0.50 Bottoming Bright Uncoated

SKU CH-EHGR-JJ429

Forms M3x0.5 metric threads in a 2.75 mm hole with a 7.94 mm thread length and 49.21 mm overall length

  • Product typeTaps
  • M3x0.50 metric thread fits standard holes
  • Bright uncoated finish resists corrosion without coating buildup
  • Bottoming chamfer threads to the bottom of blind holes
  • High-speed steel construction withstands repeated forming cycles
  • 75% thread engagement with 2.75 mm drill size

Cleveland C59421 Thread Forming Tap M3x0.50

The Cleveland C59421 is a thread forming tap designed to create internal threads in ductile materials by displacing metal rather than cutting it. It suits maintenance technicians and assembly operators who require strong, chip-free threads in M3x0.50 sizes without the clearance issues of cut taps.

Bottoming chamfer limits starting ability

The bottoming chamfer provides only a short lead of one to two threads, so the tap cannot start a new thread in a blind hole without a pre-threaded starter or a through-hole entry. Users must begin the thread with a taper or plug tap, or ensure the hole is already started, before switching to this tool for full-depth forming.

M3x0.50 capacity with 75 percent thread depth

The tap forms a 6H class fit using a 2.75 mm drill size to achieve approximately 75 percent thread engagement, delivering high pull-out strength in aluminium, brass or mild steel. It runs out of effective forming capability in harder alloys or materials above the recommended hardness range where displacement becomes excessive.

How it compares

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

Price $16.99
Cheaper than about 70% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCLEVELAND
Product typeTaps

Questions about this item

What thread size and pitch does the M3x0.50 tap create?

It forms M3 threads with a 0.50 mm pitch, giving a 75 percent thread depth when used with a 2.75 mm drill.

How deep can the 7.94 mm thread length cut in one pass?

The 7.94 mm thread length limits each pass to that depth; the 49.21 mm overall length provides shank reach beyond the cut.

Is the bright uncoated finish suitable for stainless steel?

The uncoated high-speed steel works best in softer metals; stainless steel may require a coated tap for longer life.

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