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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

  • 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.

Highlights

  • 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

Specifications

BrandCLEVELAND
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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