Screw Drivers

Screwdriver handles
The handles of the screwdrivers are either made of wood or plastic. Top-quality handles made of wood have a bolster on the screwdriver bar and this helps in holding the bar to the handle. The heavy-duty wooden handles extend the entire length of the handle and are headed over with a metal cap at the end . Plastic handles are made of fire and heat-resistant materials and they give excellent grip. Rubber or vinyl is sometimes used on plastic handles to serve as a non-slip or insulating cover.

 

Types of screwdrivers
Let us now get to know some of the popular screwdrivers , with their uses and features in the following table:

 

Philips: Having crossed slots with a flat tip, they are used for tightening and loosening Philips head screws and bolts.

 

Standard (Slotted): The standard screwdrivers have single slotted tip which is flared to the sides above the tip and used for tightening and loosening slotted screws and bolts.

 

Star (Torx®): Tightening and loosening star head screws and bolts, they are designed to prevent strippings by having a more flat contact surface with the screw head.

 

Clutch Head: They are used for tightening and loosening clutch head screws and bolts. They have four points of contact, lock into the screw head when turned counterclockwise.

 

Tack Claw: Having curved claw tips, they are used for pulling tacks and small nails.

 

Jeweler's: Used for performing fine or precision work

 

Ratcheting Screwdriver: They are available in multi-piece sets having interchangeable bits and sockets. With reversible ratcheting handles, they help in driving screws and nuts much faster.

 

Cabinet: These type of screwdrivers have thin slotted tip with straight sides for driving counter bored screws, tightening and loosening slotted screws and bolts. Popularly used in cabinet making.

 

Robertson (Square Drive): Having squared flat tip, these are specially designed for tightening and loosening Robertson screws and bolts.

 

Hex (Allen Head): For tightening and loosening recessed hexagonal bolts, screws, the hex screwdrivers are used and they can be used in place of Allen wrenches. They are mainly used in repair work in the electronics field, for tightening socket-set screws.

 

Nut Driver: Available in varied sizes from 3/16" to ½", they are used tightening and loosening hexagonal screws and bolts.

 

Offset: These screwdrivers are used for tightening and loosening screws in tight spaces. They are available in many combinations.

 

Yankee Screwdriver: Having interchangeable bits, they rotate to turn the screw when the handle is pushed.

 

Magnetized tip screwdrivers
There are some other variety of screwdrivers which are very popular in the market today. These are the magnetized tip screwdrivers. They have magnetized tips, the blades can range from Philips to Hex and other types and these are convenient when guiding screws to holes or otherwise inaccessible areas. They can also be used to retrieve dropped screws and nuts.

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