Submitted by Jack on Tue, 04/05/2010 - 23:17
Today I drilled the hole for our mechanical ventilation with heat recovery unit. Quite a scary drill but it went without any serious problems. My biggest fear was that the drill would "kick" really hard if it suddenly jammed but the drill had an automatic clutch so it would disengage whenever the drill got stuck. It still kicks a bit, but not too hard.
