I have a couple of Makita battery drills. The drill chuck redefines 'Not Fit For Purpose' as both are incapable of guaranteeing the drill bit stays where it should securely. Unlike the Bosch drill chuck on my mains drill - which, once you've tightened it up, further turns just seem to ratchet over on something - whatever - the thing is drill bits stay secure. On the Makita, there is no such ratchet mechanism and so nothing to tighten up 'against' as it were. I've tried holding the chuck in my hand and then spinning it closed under power but that doesn't work very well either. Very difficult to do with smaller bits as well.
So basically these drills are doing my head in. But before I start the long hard trek of choosing something else (My God..have you seen how many variants there are out there ) is there anything else I can try to make the chuck usable?
TIA