MACHINISTS
GUIDES
Z1003 E-Z TAP DRILL FORMULA
TO ORDER
JUST CLICK ON THE SHOPPING CART. You can put the book in your shopping
cart and change your mind latter. |
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HERE'S THE EASIEST TAP DRILL FORMULA THAT YOU WILL FIND. Most of us have a tap drill chart for normal taps, such as a 1/4-20
which calls for a #7 drill for 70% thread. but how about a 1/4-40
tap ? THIS GUIDES SHOWS YOU HOW
Z1003 |
| SEE WHAT IS IN THIS GUIDE |
$2.00
Z1003
2000
| TO BUY BY CHECK |