X-Git-Url: http://challenge-bot.com/repos/?p=challenge-bot;a=blobdiff_plain;f=guide%2Fchallenge-bot-questions.org;h=ab338e64e58c15588036f400530a856add8d66e3;hp=c7ce82a53f270f888dc71d6079dcd663d2b333ef;hb=4b16c98d50fa43f98286dce7cf2c4ee2f51e6f49;hpb=25c1b477e769f3f6eae51765d7e333636c2e42ad

diff --git a/guide/challenge-bot-questions.org b/guide/challenge-bot-questions.org
index c7ce82a..ab338e6 100644
--- a/guide/challenge-bot-questions.org
+++ b/guide/challenge-bot-questions.org
@@ -12,3 +12,6 @@
        bolt used to hold the arduino?
     3. why did we drill through the arduino, rather than marking holes
        and using the drill to make holes where the marks were?
+    4. how does the drill hold onto the drill bit?
+    5. what would happen if the drill bit teeth were not flat on the
+       drill bit?