Each stroke (1/20 seconds) has a fraction of the block: the speed of the instrument is strength 30, if the unit with this tool falls out, and the unit is 100, if not. When the unit has reached one, the block breaks. The fraction of one or more is broken immediately, at the first impact.
The speed is 1 at the hand and an instrument of others, and his material is: a wooden brick of 2, a stone kirk of 4, a copper kirch of 5, an iron pick of 6, a diamond pick of 8, a non-serial kirk 9 and a gold kirk 12. "Effience" adds level 2, plus 1, "Push" multiplys by 1 + 0.2 ×, a underwater speed of × 0.2 (with no loss) and a jump of 0.05.