YMW ZELX TI 1/4"-20 H3 Bottoming Spiral Flute Tap
YMW ZELX TI 1/4-20 H3 Bottoming Spiral Flute Tap

YMW ZELX TI 1/4"-20 H3 Bottoming Spiral Flute Tap

Item #: 12-018-132
Brand: YMW
Size Type: ANSI
Thread Size: 1/4"-20
Thread Limit: H3

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  • Made from powdered metal high speed steel to provide increased productivity as well as increased tap life when tapping titanium.
  • Powder metal offers superior wear resistance and exceptional toughness for greater performance than regular high speed steel and their unique geometry ensure consistent performance, superior thread quality and excellent tool life for lower costs.


  • For titanium, titanium alloys, magnesium & beryllium copper.


  • Right hand slow spiral flute design.
  • 3 to 4 thread chamfered
  • Supplied with a nitride surface toughening treatment.
  • Suitable for UNJ Aerospace internal threading applications.
Product Specifications
Brand YMW
Size Type ANSI
Thread Size 1/4"-20
Thread Limit H3
Chamfer Style Modified Bottoming
No. of Flutes 3
Finish Coating Nitride Surface Toughening Treatment
Tool Material Powdered Metal High Speed Steel
Cutting Direction Right Hand
Chamfer Bottoming 3-4 Thread Chamfer
Flute Shape Slow Spiral Flute
Coating Nitride Surface Toughening Treatment
Hole Style Blind
Model # 387613
Limit H3
Pitch Form & Profile 60°
No. of Threads Per Inch 20
Pitch Tolerance +.00025"/-.00000"
Prop. 65 Yes
Pitch 20
Series ZELX TI
Shank Diameter 0.255"
Shank Type Square Shank
Size 1/4"
Thread Length 0.433"
Tolerance Class UNC
Tolerance_Overall Length ±.31"
Size_Combination 1/4"-20
Tolerance_Shank -.0015"
Tolerance_Shank Square -.004"
Type Spiral Fluted Tap
Weight 0.03125 lbs.
Workpiece Material For Titanium, Titanium Alloys, Magnesium and Beryllium Copper
Country of Origin JAPAN
Prop 65 Warning Many metalworking products do contain metals that are included in the latest Prop 65 warning. Exposure to the elements can be harmful. May cause cancer and reproductive harm.

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