|Tips: Accurate Drilling Depth|
Accurate Drilling Depth
Some turning projects involve drilling stop holes (non-through holes) on a drill press. Some turners put masking tape on the drill bit to indicate the depth of drilling. If you have several objects of different depths to drill, you need a better solution than masking tape.
I learned this trick from a machinist.
Attach a steel ruler with a ⅜" (10 mm) dia. magnet to the drill press face vertically next to the depth gauge.
Lower the handle until the bit is flush with the surface of the stock (Photo 1).
Adjust the height position of the ruler to align its zero mark (end of the ruler) with the depth-gauge pointer. This will align both the bit depth and the ruler to zero (Photo 2).
Raise the handle and lower it to start drilling until the pointer points to the desired depth (Photo 3).
~ Charles Mak, Alberta