We have had some real problems with DeWalt drills lately. We have for a long time preferred the DeWalt DC984K2 XRP 14.4V, but this has recently been superceded by the DC935KSF. We must have owned well over 20 of the old DC984K2s, and we can only recall two ever developing a fault.
These are serious bits of kit, costing £250 a pop from Screwfix, and get heavy use from our handymen, so we are pretty fussy about them working properly.
But of the four new DC935KSF models that we have bought, two have developed faults that have required them to be sent back: in one the chuck would not lock closed and kept releasing the bit; with another the chuck just wasn't centered properly, so the bit would wander around.
Plus, the slowest speed you can run the drill at is too fast to be able to grip the chuck with your hand to make it lock onto the bit (any regular user of drills will know what I am talking about: rather than screw the chuck in by hand to grip the bit, you just hold the chuck still and gently use the drill's power to close the jaws onto the bit). If you try and hold the chuck it just whizzes out of your grip. You have to turn the chuck manually, which makes changing bits a chore.
And none of our handymen like them - the older model just feels to be better quality (although DeWalt insist the replacement is a huge improvement, saying that the chuck, motor and battery are all of higher quality than the old one).
We won't be buying any more of this model of DeWalt. Screwfix have kindly agreed to swap our dodgy DeWalts for the Makita Lithium-Ion BHP440SFE 14.4V even though the Makita costs a bit more, which is very nice of them. This Makita might be a little lightweight for our use, if so then we will probably upgrade to the Makita BHP441SFE Lithium-Ion 14.4V
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