A simple and cheap to build bubble (spirit) level to help in vertical up down drilling with manual drillers. It is attached on second handle place (behind the mandrel) with a wingnut and M6 (or 1/4") screw.
Fit in 1/2" mandrel drillers with option to attach a second hand grip behind the mandrel.
Be careful with warpages of the part when print
Materials Needed:
01 - M6 x 20mm screw (or 1/4x 3/4)01 - M6 (or 1/4) wing nut02 - M6 (or 1/4) plane washer01 - 32mm round spirit bubble level