2020. 2. 9. 23:57ㆍ카테고리 없음
Corded drill + impact driver + drill driver I would say the corded drill is a must because of the power and and also time saving changing from drill bits to driver bits. I managed for years with an old fashioned £20 corded percussion drill and it lasted me through 3 house re-fits and many days on site.
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Tags, Introduction Cordless are becoming more popular with trade and home users alike, offering significant advantages over the conventional. The impact driver works in a radically different way to the combi though essentially it’s a powerful, fast, cordless drill. Impact or Combi? The main difference is that the impacting mechanism of the impact driver isn’t activated until the torque required to continue driving is greater than the torque generated by the rotational power of the motor itself. It’s at this point that the impacting mechanism starts to work, where the internal hammer attached to the motor rapidly starts to strike the anvil which is attached to the bit.
- Comes with - 2x batteries, charger & carry case. No load speed: 0-350/1350 rpm. Torque settings: 17+1 3 drill functions; Drill, hammer drill & driver.
- The impact driver acts as a fast drill to begin with and a huge amount of additional torque is generated when the internal hammer/anvil system starts to operate. The impact driver is a fast and very powerful but ultimately, in an ideal world, the dedicated power tool user needs a combi drill as well!
These very swift, powerful blows supply the additional torque and it’s for this reason that the impact driver is so named. Despite the hammer system, impact drivers aren’t hammer drills. On a hammer drill, the bit moves in and out, whereas on an impact driver, the bit stays put. This means that the hammer action takes place inside the tool. Power and Torque This varies from model to model, but in general terms, impact drivers have a electronically variable delivery of up to 3,000bpm (blows per minute) or 50 every second at 0- 2,500rpm, but it’s the torque which is really impressive.
Some impact drivers will provide over 150Nm of torque and even the smaller ones can supply approximately 100Nm, which results in an extremely powerful and functional tool. A comparable 18V combi drill is only able to deliver 50-60Nm of torque.
It’s easy to conclude that an impact driver can deliver up to three times as much torque! Benefits Impact drivers have no reactionary torque, which means that they can be safely operated with one hand as the way the torque is transferred within the tool means that the user doesn’t have to manage any external force (as with a conventional combi drill) which makes it easier to control. Combined with the comparatively light weight, the use of an impact driver means that the stress in wrists, hands and forearms is also kept to a minimum. An added bonus is that the battery life is prolonged as impact drivers don’t drain additional power when the torque cuts in.
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Disadvantages The impact driver is a fairly brutal power tool and is, for example, perhaps best used on site or in the home where it excels in effortlessly driving large screws. Where more finesse or delicacy is required, it’s better to use the more precise control afforded by a combi drill. The impact driver is also only supplied with a ¼” Hex (or alternative wrench drive), which means that it is awkward to fit drill bits unless they have a. Conclusion The impact driver acts as a fast drill to begin with and a huge amount of additional torque is generated when the internal hammer/anvil system starts to operate. The impact driver is a fast and very powerful but ultimately, in an ideal world, the dedicated power tool user needs a combi drill as well!
I've got the exact same Bosch one bought from B&Q but it cost me £60 instore. I've got a 20 year old Bosch and the battery packed in. A replacement battery would have cost £40 so for 20 quid more I got a new more powerful drill and two lithium batteries (as opposed to 1 Nicad). As I've already said, my previous drill was a Bosch and served me well for 20 years so I'm more than happy to replace it with another Bosch.
If anyone's after a good set of masonary bits then I'd recommend the following, had them several years and still going strong. I would certainly advise avoiding anything with NiCd batteries. They simply take too much 'looking after'. Li-Ion is the thing to go for.
Comes at a cost, though. If it's of any interest, there are one or two firms out there that make a range of products that use the same battery type and fitment. It means that for limited outlay on one charger and (say) two or three batteries, you can have a range of otherwise relatively inexpensive cordess tools - rather than paying out for multiple different batteries and chargers.
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Ryobi One+ is an example of what I mean, with DIY and gardening tools all using the same batteries. (This is not a recommendation about quality - on that I can't really comment; it's the system that I like the idea of).
Hey Man, We had a builder in our house a few years ago and he said if you want the best you buy Makita or DeWalt and the more you spend (usually) the better it is. However he said if all you are going to use it for is occasional DIY (i.e. Not all day everyday) then these can be a bit pricey for what you need. I fall into the later category and have always been a fan of MacAllister from B&Q. They have a Lithium Mac 18V for about £70 and it comes with to batteries and a holdall (proper snobby ): That is my thoughts anyway.
I have one of these its about 6-7 months old and has plenty of power, the batteries last much longer than you would think for 1.5ah as well. I dont ever use mine anymore really, prob only used it 10-15 times when overboarding ceilings and now have makita ones from work (thanks openreach) that i can use so if your interested you can have it for £50 and save yourself some cash then spend the extra on some decent bits? If so ill start an advert? If not then id recommend makita or hitatchi personally, ive used dewalt in the past and there horrible, badly balanced with them daft batteries and uncomfortable after a while imo.
I know its a cordless and tennis racket but the balance of them makes a big difference when your using it for long periods like doing your decking.