Eccentric sleeves are used to drill holes to increase or decrease the size by 0.2 mm, allowing you to achieve the target size.
20-25 means 20 mm shank of the u drill, 25 mm of holder inner diameter
20-32 means 20 mm shank of a drill, 32 mm of the holder inner diameter
25-32 means 25 mm shank of the u drill, 32 mm of the holder inner diameter
25- 40 means 25 mm shank of a drill, 40 mm of the holder inner diameter
32 -40 means 32 mm shank of the u drill, 40 mm of the holder inner diameter
ID STAND FOR INNER DIAMETER OF SLEEVE
OD STAND FOR OUTSIDE DIAMTER OF SLEEVE
Using the eccentric sleeves,you can vary and adjust the diameter of the hole by +/- 0.2 mm with ease
