♦ Using a special drill chuck holder, can grind drill bits range 3~28mm. One chuck can hold different sizes drill bits. The tip angle of the drill bit can be adjusted as required;
♦ Can grind fixed center; the same chuck holder is used for grinding woodworking drill bits and step drill bits;
♦ The operation is simple, easy to operate;
♦ For grinding diameter less than Ф3mm, need to use ER11 extension sleeve;
♦ Diamond grinding wheel can be customized.
