This is a really useful feature when tightening or undoing screws which are in a pre drilled hole which is the same diameter as the screw head.
Parallel screwdrivers have an edge which is the same width as the shaft.
#How to open a mac without a screwdriver driver#
A Flared driver is one which has a tip which has been flattened so that the edge is slightly wider than the shaftįlared screwdrivers have an edge slightly wider than the shaft.There are two different types of slotted screwdriver. The result usually is that you can’t get the screw either in or out!!Īll slotted screw heads lined up in a row – Image courtesy of Flared and Parallel Slotted Screwdrivers Slotted screws are not designed for power driving and the head can easily be spoiled by a powerful drill-driver simply tearing one side of the slot away. If you are considering using a slotted screw please be very careful if using it with a power driver or any kind of electric screwdriver. There is no doubt about it that this really shows pride in ones work. Some joiners even insist that their apprentices make sure that each slot is in the same direction in hinges. Slotted screwdrivers come in a variety of sizesĬabinet makers and the old breed of joiners prefer to use slotted screws as, when fixing many times, they can line all the slots up to make the job look really neat. Usually in a DIYers toolbox you would expect to see two sizes which are the most common – 5.5mm wide and 8mm wide.Ĭare must be taken when using a slotted driver as, unless the pressure is applied directly down the length of the screw, the driver can slip out of the slot and scratch the surface of your work or in some cases, embed itself in your hand or finger.
Quite often used for opening tins of paint, the slotted screwdriver comes in many sizes from tiny precision or watchmakers screwdrivers to huge industrial sizes. The slotted, flared or flat screwdriver precedes all other types of screwdriver and fits neatly into a slot on the top of the screw. What Different Types of Screwdriver are There? The Slotted Screwdriver Of course the type of screwdriver you use will depend on the type of screw you are working with so do please go along to our project page on the different types of screwĬlick on any images throughout this section to find out more about the tools shown and buy them if the mood takes you. If you have used, or own any other different type of screwdriver please do get in touch. The list that follows is as complete as we can make it today. The Type of Screwdriver is Decided by the Type of Screw In all probability, as the various different types of screwdriver were developed, the correct screw or similar fixing was developed at the same time, as really one couldn’t exist without the other. Screws have evolved from the original idea of a pointed threaded nail with a slot cut in the head, to security screws that are almost impossible to remove, without the right type of screwdriver that is.Īs screws have evolved, so have screwdrivers, as, without the right type of screw driver head, it would be impossible to actually screw a screw in, but if you’re thinking “which came first the screwdriver or the screw”, that’s a tough one and one that we haven’t found a definitive answer to as yet. The Screwdriver is one of the most commonly used words in the home improvement field but the phrase “Pass me a screwdriver” is now one of the most complex of tasks as there are dozens of different types of screwdriver.
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