YMW 5/16"-18 H3 3 Flute High Speed Steel Spiral Pointed Plug Tap

YMW 5/16"-18 H3 3 Flute High Speed Steel Spiral Pointed Plug Tap

Item #: 12-014-127
Brand: YMW
Size Type: ANSI
Thread Size: 5/16"-18
Thread Limit: H3

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  • Designed for tapping carbon steels, alloyed steels, irons, brass & free machining materials, including stainless steel that require the most economical life.
  • Ideal for materials that produce stringy chips, such as steels, stainless steels & plastics.
  • Recommended for through holes.


  • 5 threads chamfered.
  • DIN lengths with ANSI shank dimensions.
Product Specifications
Brand YMW
Size Type ANSI
Thread Size 5/16"-18
Thread Limit H3
Chamfer Style Plug
No. of Flutes 3
Finish Coating Bright
Tool Material Vanadium High Speed Steel
Cutting Direction Right Hand
Chamfer 3 - 5 threads
Coolant Fed No
Flute Length .748"
Coolant Through No
Flute Shape Straight Flute
Hole Style Through Holes
Limit H3
Material To Be Machined Steels, ferrous materials that produce stringy chips, brass & plastics.
Overall Length 3.543"
No. of Threads Per Inch 18
Pitch Diameter .260 - .323
Pitch Tolerance +.00025" / -.00000"
Prop. 65 Yes
Pitch 18
Series PO Series
Shank Diameter 0.318"
Pitch Form & Profile 60°
Shank Type Square shank
Size 5/16"
Square Length 0.38"
Square Size 0.238"
Style Spiral Pointed Plug Tap
Thread Length 0.748"
Thread Type 60°
Threads Per Inch 18
Tolerance Class UNC
Tolerance_Flute Length ±.063"
Tolerance_Overall Length ±.031"
Tolerance_Shank -.0015"
Tolerance_Shank Square -.004"
Type Spiral Pointed Plug Tap
Weight 0.05 lbs.
Country of Origin JAPAN
Tool Coolant Feeding No
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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