The most common kinds of screwdrivers are those that have a blade end. These are called flat blade screwdrivers. They have been around the longest. They are what is called traditional, whatever that is. The second most common drivers are the Phillips head screwdrivers. These drivers have a four-star point at the end that fits into the cross-shaped top of a Phillips screw. These screwdrivers are supposed to allow you to apply more torque to the screw. Because of the cross-shaped depression in the top of the screw, the screwdriver will not slip out of the screw head as readily as the flat blade will out of a slot head screw.
Speaking of torque, it is always important to get the right screwdriver for the screw that you are driving. That is important in more than one area. Some folks try to use a flat blade screwdriver in a Phillips head screw or vice-versa. This is not a good idea. Also some will try to use the wrong size screwdriver for the screw. Either the slot head is too small for the blade end of the screwdriver or the blade could be too wide to fit down snugly into the slot of the screw. When you fit the blade or point of the screwdriver into the slot or star of the screw you can tell if there is a snug fit. With the slot screwdriver the blade should not only fit snugly into the slot, but it should not hang out over the edges of the screw either. With the Phillips screwdriver the tip of the tool should fit snugly down into the cross shape with no play from side-to-side. If the tip of the driver does not fit correctly into the screw you could damage either the head of the screw or the surface into which the screw is being driven. Neither of these results is pleasant, it is much more difficult to try to extract a damaged screw, than it is to use the right screwdriver in the first place.
Power Screwdriver
There are some other screwdriver types that are less commonly known. One of these is the torx screwdriver. This one is designed for high torque applications. The end of the tool has a star shape. It is not exactly like the Phillips, but similar. The star shape allows for very high torque to be applied to the screw. Other types of these high torque screwdrivers include variations that are similar to the torx. These are polydrive, spline-drive, double hex, triple square, and Bristol.
Obviously the different types of screwdrivers apply torque to screws that are put into different types of surfaces. The blade type driver would be used primarily for wood and softer metal surfaces. It is a very good idea to drill a pilot hole where the screw will be placed in the surface. Obviously you want that hole to be just a little smaller in diameter that the screw. Another way to make the hole into which the screw will be driven is to use a nail and hammer. Always use a nail that is smaller than the diameter of the screw to make the hole. And do not drive the nail in too deep. You just want a hole that will allow the first turns of the screw to start to hold when it is put into the hole with a screwdriver. Also the nail needs to be pulled out easily. That hole will make sure that the screw will hold fast when it is screwed into the surface. Also the hole will make it much easier to screw in the screw, you won't have to use as much force with the screwdriver.
The Phillips screwdriver would allow you to effectively put screws into harder woods and metals, while the torx driver would allow you to put screws into very hard metals. There are a lot of variation of each of these types also. There are short, thin shaft blade screwdrivers that are called Cabinet. These are usually used for working with low torque applications such as putting screws into the soft wood of a cabinet, hence the name. There are variations in the length of the shafts of a screwdrivers. Some are short or stubby for working in tight places. Some have very long shafts for reaching down into hard to reach areas. Contrary to what you might think, the longer shaft of a screwdriver does not allow you to apply more torque to the screw. Having a larger handle for the screwdriver will allow greater torque to be applied. For the extremely high torque applications the ratchet screwdriver can be used very effectively. This tool combines a blade or other type of tip with the high leverage handle. This combination will produce very high torque for putting screws into very hard surfaces.
Special Price!!! Denali 3.6-Volt Lithium-Ion Cordless Screwdriver Kit with Wall-Mountable Charger
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Denali 3.6-Volt Lithium-Ion Cordless Screwdriver Kit with Wall-Mountable Charger Feature
- Compact/lightweight design makes working in tight spaces easier
- Lithium ion battery technology provides 20-Percent more torque and holds a charge for up to 1-1/2 years
- Nose mounted LED light provides added light source
- Equipped with battery level indicator lights and a comfortable cushion grip handle
- Includes durable carrying/storage case featuring a built in 20-Piece accessory set and wall mountable charger, this item will need to be charged prior to using
Denali 3.6-Volt Lithium-Ion Cordless Screwdriver Kit with Wall-Mountable Charger Overview
Don’t be fooled by its compact size, the Denali 3.6-volt lithium ion cordless screwdriver is a powerful tool for serious do-it-yourselfers. The ergonomically designed pistol-grip tool fits into the palm of your hand and weighs a mere 13 ounces. At its heart is a high-tech lithium-ion rechargeable battery that delivers 20 percent more torque—that is, turning power—than comparable nickel-cadmium batteries.And if you’re tried of battery-powered tools that are always dead when you need them, you’re going to love this Denali screwdriver: its lithium-ion battery will hold a charge for over 18 months! Leave it in your desk, under the kitchen sink, or on your workbench, and this little powerhouse will always be ready when you are. It takes about 10 hours to fully charge the battery the very first time, but after that, recharging takes between five and seven hours. The tool has a series of three battery indicator lights that lets you know when recharging is required.
The Denali 3.6-volt Lithium Ion Cordless Screwdriver is ideal for all light- to medium-duty screw-driving and hole-drilling chores, including hanging curtain rods, drilling pilot holes for nails or screws, assembling furniture and toys, installing window shades, attaching cabinet hinges and door pulls, and countless other home repair and improvement projects. It’s even equipped with an LED work light that makes it easy to work in dark spaces. The tool comes in a convenient zippered nylon case, along with the plug-in charger, and a 20-piece accessory kit (five titanium-coated drill bits, and 15 assorted screw-driving tips). -- Joseph Truini
What's In The Box: Denali 3.6-volt lithium-ion cordless screwdriver, zippered storage case, plug-in charger, 20-piece accessory kit, wall mountable charger
About Denali
Named after the tallest mountain range in North America, Denali tools stand above the rest in providing an exceptional blend of quality craftsmanship, professional-grade features, and customer value. All homeowners, hobbyists, do-it-yourselfers, and price-conscious contractors will appreciate Denali’s design and functionality. Denali products compliment one another and will be an indispensable and long-lasting addition to any home or workshop. Our products undergo rigorous third-party testing to ensure high performance standards. Denali tools are available exclusively on Amazon.com.
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