I bough this drill no less than six months ago and I'm already having to replace.
I never normally bother with Makita but i needed a drill and this was the only one in stock at the time, but i thought it would be perfectly usable as Makita holds high opinion with other contractors i work with. At first glance i was impressed with the price and the packaging was promising, the tool box felt sturdy and came with a handy bit organizer attached to the front. But upon removing the drill from the packaging it all started to become clear why it was £60 cheaper than the Dewalt id replaced it with. Although the drill was light, which is excellent for using at height or in awkward positions, but the casing just felt cheap, the chuck was also plastic so didn't hold much hope for this either.
After a few hours use i noticed that the chuck either slipped or came loose with every hole i drilled, bearing in mind i only drill 5mm or 8.5mm holes in steel, this isn't exactly pushing the drill to its limits. After a few days this becomes rather annoying, but not the end of the world.
Makita claim that this drill is capable of drilling 13mm holes in steel, 30mm in wood and 16mm into masonry. Id disagree with all of these claims, there's very little speed control with this drill, making drilling anything bigger than 10mm difficult in steel as the drill speed is far to fast for this. Drilling into to stone or concrete is the biggest downfall for this drill, to make a long story short, it cant. Although the drill has a hammer function id advise not to use it! I only intended to drill 10 10mm holes and as Makita claim 16mm is the maximum I thought i was well within the drills limit. After drilling the 1st 5 holes and struggling i turned the drill off, after this the drill would no longer return to its normal drilling mode, it now constantly wants to work in hammer function, causing me a lot of hassle when drilling into steel, snapping drill bits ect. A few days later cracks started to appear in the casing, eventually leading to the whole front half of the drill breaking off! Deeming it completely useless.
I think this drill may be ok for DIY users but is definitely not a professional tool. Id avoid drilling into to concrete or using the hammer function at all costs, and the chuck is rubbish.
"Corded: yes / Makita HP1631K/1 710W Percussion Drill 110V / Ideal for all drilling applications including wood, steel, masonry, brick and block. Supplied with carry case. Features: 710W; Variable Speed; 13mm Keyless Chuck; Lock-On Switch; Soft-Grip Handle. Specifications: Max. drilling capacity in masonry 16mm, wood 30mm, steel 13mm. No load speed 0-3200rpm. Weight 1.9kg.. 110V version includes plug."