[Step drill] industry stepped drill, the first choice is good too -

Step drill machining for automotive, aerospace, sheet metal processing, installation and maintenance of electrical and other industries, while convenient product to carry to meet the high-altitude operations with hand drills and other tools. So in the course of drilling steps have what matters is that we should take into account it? In order to better serve our drill to make the step, following too good for everyone to do the relevant instructions.

Step drills use matters:

⒈ when drilling steel, please ensure sufficient cooling capacity and the use of metal cutting fluid.
⒉ good drill steel and rail gap can improve the precision of drilling and drill life
⒊ please ensure smooth and clean magnetic base and workpiece.
⒋ sheet when drilling, to the workpiece reinforcement, drilling large workpieces, please ensure stable workpiece.
⒌ drilling beginning and end of feed rate should be reduced 1/3.
⒍ material when drilling large number of fine powder, such as iron, copper, etc., can not use the coolant, and the use of compressed air to help chip.
⒎ please clear the wound on the drill body iron, in order to ensure smooth chip evacuation.

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