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Bright M4 x 0.70 thread forming tap, 2.13 in overall length

Cleveland

Cleveland C59425 M4 x 0.70 thread forming tap

SKU CH-CWSB-QZYDW

M4 x 0.70 thread forming tap creates internal threads in metric holes, 2.13 in overall length with 9.52 mm thread length, high-speed steel bright finish, right-hand D6 limit for 6H fit

  • Product typeTaps
  • Forms threads without chips for stronger M4x.70 joints
  • Bottoming chamfer reaches full depth in blind holes
  • High-speed steel resists wear during repeated tapping
  • Bright finish prevents galling on aluminium and steel
  • 75 % thread drill size 3.65 mm ensures precise fit

M4 thread-forming tap for metalworking

The Cleveland C59425 forms internal M4 x 0.70 threads in ductile materials by displacing metal rather than cutting it. It suits maintenance and production tasks where chip-free holes and stronger threads are required.

Bright high-speed steel with bottoming chamfer

The uncoated high-speed steel body resists wear in general-purpose ferrous and non-ferrous alloys. A bottoming lead lets the tap start threads close to the bottom of a blind hole while the zero-flute design eliminates chip evacuation issues.

Requires 3.65 mm drill for 75 percent thread

Using the specified drill size produces the correct 6H class-of-fit tolerance with a D6 thread limit. The 9.52 mm thread length and 2.13 in overall length fit standard tap holders and CNC tool changers without modification.

How it compares

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

Price $28.99
Typical for this category: the median of 5,493 items is $27.99.

Specifications

Product
Brand nameCLEVELAND
Product typeTaps

Questions about this item

How do I install the M4 x 0.70 tap and what is the common mistake with the drill size?

Drill a 3.65 mm hole first, then run the tap straight with steady pressure. The frequent error is using a standard M4 clearance drill instead of the 75 percent thread size, which leaves insufficient material for the flutes to form threads cleanly.

What maintenance or replacement will this tap need over time?

The bright uncoated high-speed steel cutting edges will dull after repeated use in steel or stainless. Replace the tap when thread formation becomes rough or requires excessive torque, as resharpening a thread-forming geometry is not practical.

What limit appears first during sustained tapping with this tool?

Chip evacuation in the 9.52 mm thread length becomes the bottleneck. The zero-flute design has no chip clearance, so material builds up quickly in deep or blind holes, increasing torque and risking tap breakage before the D6 limit is reached.

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