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TAPS & DIES
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TAPS USED TO CUT INTERNAL THREADS TAP HANDLE TAP AND HANDLE
(QUESTION ON TOOL TEST) TAP HANDLE TAP AND HANDLE RE-THREADING A NUT
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CUTTING THREADS ON OUR FIRST SHOP PROJECT
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DIFFERENT KINDS OF TAPS
TAPER BOTTOMING PLUG
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WHEN TO USE DIFFERENT KINDS OF TAPS
ALWAYS USE TAPER OR PLUG TO START NEW HOLES HAVE TO CHANGE TO A BOTTOMING TAP WHEN THREADING TO THE BOTTOM OF BLIND HOLE BLIND HOLE - DOESN’T GO ALL THE WAY THROUGH
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HOW TO USE USE CUTTING OIL WHEN MAKING NEW THREADS
ON EVERYTHING EXCEPT CAST IRON NO MORE THAN 2 TURNS WITHOUT BACKING UP A 1/2 TURN
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DIFFERENT WAYS TO DRIVE TAPS
WITH “T” HANDLE WITH RATCHET WHEN SPACE IS A PROBLEM
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DIES DIE HANDLE
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USES FOR DIES CUT EXTERNAL THREADS (ON TOOL TEST)
CLEAN (CHASE) EXTERNAL THREADS
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HOW TO USE USE CUTTING OIL WHEN MAKING NEW THREADS
NO MORE THAN 2 TURNS WITHOUT BACKING UP A 1/2 TURN (JUST LIKE TAPS)
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SELECTING THE RIGHT TAP OR DIE
YOU HAVE TO KNOW 2 THINGS DIAMETER (DISTANCE ACROSS) HOW CLOSE THE THREADS ARE TO EACH OTHER THREADS PER INCH (U.S.C.S.) MILLIMETERS BETWEEN THREADS (METRIC)
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FINDING THE DIAMETER
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FINDING HOW CLOSE THE THREADS ARE TOGETHER
MEASURES THREADS PER INCH THREAD PITCH GAUGE
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FINDING HOW CLOSE THE THREADS ARE TOGETHER
IN THE USCS THERE ARE TWO MAJOR THREAD SERIES FOR BOLTS AND NUTS (ON TOOL TEST) NATIONAL COARSE (NC)
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THREAD SERIES NATIONAL COARSE (NC) NATIONAL FINE (NF)
THERE IS ALSO BRAKE THREAD, TUBING THREAD PIPE THREAD PLUS METRIC THREAD (NOT ON TEST)
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SET TO 1/2” APPROXIMATELY $80
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