Some very common and reliable drills and kits are made by the following brands: Black & decker, Bosch, Craftsman, Dewalt, Hitachi, Makita, Skill. You can go online to find reviews for each of these brands and tools to gain a better understanding of which tool or kit would work best for you depending on the type of
cordless angle grinder project being done.
Cordless drills
These tools are best used for fast drilling and most screw-driving projects. NiCd-powered models can handle most jobs and can drill through most material. Be certain that you read the instructions manual before using a cordless drill (and any type of tool), especially if you have questions or concerns are the tools capabilities and performance. The 18-volt drills (which are the most commonly used now) weigh about twice as much as 9.6-volt models. Even though these are heavier, because they have more voltage, they are more powerful. But if the 18-volt is too heavy for you, the 9.6-volt can still be used for basic drilling projects.
Attachments
1. Cordless tool kits (attachments for cordless drills)
Reciprocating saws and circular saws are some of the attachments that can be added to the cordless drill. These saws are often sold with cordless drills in "kits" that also include a work light and, for some, an auxiliary tool. The cordless drill and the saws that come together in a kit all share the same battery, which makes purchasing the kit less expensive than purchasing each separate tool, battery and charger. Keep in mind that when purchasing tools, one must first assess what they need the tool for, which tool is best for the job, and also the desired quality and shelf life of the tool. Purchasing a more expensive, longer lasting tool is often times worth the extra money rather than purchasing a less expensive, lower quality model.
2. Batteries
Almost all drills (except for the most inexpensive ones), come with two batteries so that you are able to use one battery while the other battery is charging. Several brands let you buy drills, saws, and other tools separately, without also purchasing batteries and chargers. This can save you money by letting you share both batteries and chargers among multiple tools as you would with a cordless kit.Craftsman and DeWalt are among the brands that let you use lithium cells (a common battery used for many tools) with some of their nickel cadmium tools.
3. Extra handle
Some drill models also have a second, side handle so that you can hold it with two hands. This handle can be help for counteracting twisting forces when tightening or loosening things.