• Significant Figures Java Applet
  Requires correct identification of number of Significant Figures in numbers and (addition) equations. Here is a little game with significant figures. There are 12 different numbers for which you have to determine the number of significant figures. Try to keep the number of wrong tries to a minimum!
  By pdboyer in Public bookmarks with digits drill interactive lab measurement precision sig_figs
• Wood Screw Chart
  screw sizes, pilot holes, drill bits, etc
  By theCoup in temp with drill hardware
• Drills
  cleveland twist drill c08587 420mm cleveland list 2510 hss taper length drill
  By yweio in Public bookmarks with drill drills
• tone drill
  
  art artist brush calligraphy china chinese exchange inkstone inkstones learning mandarin shu shufa sumi-e tools trade
  By mrkane in Public > Imported > Chinese with chinese drill tone

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