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techtalk:ref:svcproc40 [2019/04/15 00:15]
hippysmack [AN Thread Sizes]
techtalk:ref:svcproc40 [2019/06/24 16:26] (current)
hippysmack [Removing a Broken Tap]
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----- +====== ​Drilling ​====== 
- +\\ 
-======= ​Removing a Broken Tap ======= +===== Use Sharp Drill Bits =====
-  * The best way to remove a broken carbon steel tap is to use a small hole punch to the center of the broken tap and smack it with a hammer while exploding the hardened tap. You don't stand a chance at drilling it out without damaging the hole/ threads and chances are since pressure was enough to break the tap, it'll take more pressure than that to remove the broken lil stubby that's left. ((hippysmack)) ((Article by Oldrump1 [[http://​xlforum.net/​forums/​showthread.php?​t=1959533]])) +
- +
- +
- +
-====== Use Sharp Drill Bits ======+
 Always let the bit do the cutting. \\  Always let the bit do the cutting. \\ 
 Pressing harder on the drill only flexes the bit. (Broken bits or wallowed out holes to follow). \\ Pressing harder on the drill only flexes the bit. (Broken bits or wallowed out holes to follow). \\
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 |{{techtalk:​ref:​svcproc:​inspecting_drill_chips_1_by_hippysmack.jpg?​direct&​300|}}|{{techtalk:​ref:​svcproc:​inspecting_drill_chips_2_by_hippysmack.jpg?​direct&​300|}}|{{techtalk:​ref:​svcproc:​inspecting_drill_chips_3_by_hippysmack.jpg?​direct&​300|}}| |{{techtalk:​ref:​svcproc:​inspecting_drill_chips_1_by_hippysmack.jpg?​direct&​300|}}|{{techtalk:​ref:​svcproc:​inspecting_drill_chips_2_by_hippysmack.jpg?​direct&​300|}}|{{techtalk:​ref:​svcproc:​inspecting_drill_chips_3_by_hippysmack.jpg?​direct&​300|}}|
  
-====== Make a Pilot Hole Before Drilling ​======+===== Grease or Oil the Bits ===== 
 +Make sure to cover drill bits, taps and dies in grease or heavy lube to capture any swarf (shavings) while working. \\ 
 +Back them out, clean and re-lube them periodically to minimize any loose particles getting loose in your work area. \\ 
 +This also helps to control heat buildup. \\ 
 +|  Lubing bits. ((photos by sifty of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=1592463&​page=5)) ​ ||| 
 +|{{:​techtalk:​ref:​svcproc:​lubing_bits_1_by_sifty.jpg?​direct&​300|}}|{{:​techtalk:​ref:​svcproc:​lubing_bits_2_by_sifty.jpg?​direct&​300|}}|{{:​techtalk:​ref:​svcproc:​lubing_bits_3_by_sifty.jpg?​direct&​300|}}| 
 +===== Make a Pilot Hole Before Drilling =====
  
   * A drill bit (without a pilot hole) wil want to walk away from the originally intended starting place.   * A drill bit (without a pilot hole) wil want to walk away from the originally intended starting place.
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 |Starting a crooked hole with a pilot ((photo by Hippysmack))| |Starting a crooked hole with a pilot ((photo by Hippysmack))|
 |{{:​techtalk:​ref:​tools:​drilling_a_pilot_hole_by_hippysmack.jpg?​direct&​300|}}| |{{:​techtalk:​ref:​tools:​drilling_a_pilot_hole_by_hippysmack.jpg?​direct&​300|}}|
 +
 +====== Tapping ======
 +Make sure to use sharp tap and dies. ((Shadowdog500 of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=221093&​highlight=split+rocker+box)) \\
 +This is a Craftsman master rethreading kit (5105). \\
 +It looks like a tap and die set but the threading doesn'​t have the sharp cutting edge. \
 +They are great for cleaning the crud out of threads and straightening out slightly mangled threads. \\
 +(by pushing them straight again without removing any material) \\
 +The kit comes with thread files that come in handy to clean up threads. \\ 
 +If these don't work, then you can use the regular tap and dies. \\
 +Methodically chasing existing threads is never a bad idea. \\
 +You just have to make sure you are using the correct size tool and don't get in a hurry and cross thread a tap and really screw things up. \\
 +Harbor freight may have a cheaper thread chasing kit. \\
 +
 +===== Removing a Broken Tap =====
 +  * The best way to remove a broken carbon steel tap is to use a small hole punch to the center of the broken tap and smack it with a hammer while exploding the hardened tap. You don't stand a chance at drilling it out without damaging the hole/ threads and chances are since pressure was enough to break the tap, it'll take more pressure than that to remove the broken lil stubby that's left. ((hippysmack)) ((Article by Oldrump1 [[http://​xlforum.net/​forums/​showthread.php?​t=1959533]]))
 +
 +
 +\\
  
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