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7/32-20 BSW Right Hand Taper and Bottom Tap Set, Stanley Plane Restoration Tools, see #10, 13, 14 & 15 on the attached Stanley Plane parts diagram
Bottom Tap was cut with a water-jet to keep the tap cool to maintain hardness.
Question: What is the difference between 7/32-20 and 12-20?Answer: 7/32-20 has a diameter of .2188” and 12-20 has a diameter of .2160” a difference of .0028” or 28 ten thousandths of an inch. If we convert this to metric, the difference is 71.12 microns. A micron is one one thousandth of a millimeter. A human hair has a diameter range of ~17 to 181 microns.
We will combine shipping on multiple items and refund the savings. Receive a $3.00 refund on this item when you order more than one item for shipping at the same time.
MWTCA organization members will receive a 10% discount rebate. Send us a message and let us know you are a member. We will send your rebate promptly through . Thank you for supporting Mid West Tool Collectors Association.
