Suitable for use on micromot small drillsdrill chuck or colletdrill chucks order nr 813507 provide more convenience to quickly change the tools when working with shafts of varying diameters eg hss drills as per din 338 however because of their technical setup they have a few drawbacks compared to collets less clamping force and higher concentricity tolerances if high precision is necessary then working with micromot steel collets is a must