dsty
Bronze Member
- Thread starter
- #221
Hello Mark60, A drill hole that's 4 inches across = 10 cm - if its 4 inches deep that's 10 cm, the distance around the top ( I used a fabric tape ) = 34.5 X 2 = 69 paces x33 inches =189.5 feet. Pay close to everything in the bottom, smaller drill hole ( 1/4 inch ) will make it deeper, there will be over 250 difference types with different meaning. Two inch hole means 1/2 the distance or you can use any type of math, 16 inch deep and 16 inch works the same . Time is up.