1, openings for when use, please don't regularly to grasp and reasonable
selection, contrast, tachometer, and constantly add coolant in order to prevent
the edge crack, such as high-speed gun drill is used, should control switch
during operation, do a a close as far as possible to reduce its speed, widely
used in the bench drill drilling machine used on all kinds of drill hole.
2 for, aluminum alloy of metal pipe fittings plastic sheet. All kinds of
wood, gypsum board, such as open hole
Metal core, remember to add coolant in open metal pipes
1, the knife cut material must be fixed, not moving, and to open a
blastholes 90 degree angles
2, when positioning drill drill, please note, then slowly drilling.
3, operation process, such as abnormal or cut is not ideal, please stop
working, cut down after in the work.
4, the mounting screws, please don't too hard, so as not to put the screw
twist and smooth
4, processing more than 10 mm thickness, please remove the location of the
spring on the drill
