METHOD FOR MANUFACTURING MAGNETIC ATTRACTION TYPE DRIVER BIT, MAGNETIC ATTRACTION TYPE DRIVER BIT AND ATTRACTION FORCE RECOVERY JIG

摘要

PROBLEM TO BE SOLVED: To improve usability of a magnetic attraction type driver bit.;SOLUTION: A method for manufacturing a magnetic attraction type driver bit includes: fixing a small diameter part 10b formed in an intermediate position in an axial direction of a driver bit body 10 by surrounding with multiple magnet pieces 11; and setting the driver bit body 11 to a magnetization device 3 so as to be subjected to saturated magnetization in the same direction as the multiple magnet pieces 11.;SELECTED DRAWING: Figure 3;COPYRIGHT: (C)2019,JPO&INPIT