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> New 1/4" 28 tpi. 1/4-28 nf RH4 bottom osg form taps
New 1/4" 28 tpi. 1/4-28 nf RH4 bottom osg form taps
* Use a .234" (letter A) drill for this tap.
* Form internal threads by displacing the metal and producing no chips.
* Ground thread for better surface finish and tighter tolerances.
* Larger initial tap holes required.
* Designed for high production tapping.
* Ideal for aluminum, brass, copper, die casting, leaded steel, magnesium, zinc and 300 series stainless steels up to 30HRC.
