How to Choose and Buy an Electric Screwdriver

How to Choose and Buy an Electric Screwdriver - Introduction

The electric screwdriver is a secure, reliable and easy to use tool for jobs around the house. That doesn't mean that the humble manual screwdriver is obsolete, but the electric screwdriver is more efficient at dealing with many large and small tasks.
Why is an electric screwdriver more efficient than its manual counterpart? Essentially an electric screwdriver generates a lot of torque (rotational force) so you can insert and remove screws with precision in a fraction of the time that it would take you with a manual screwdriver.
However, models of electric screwdriver can vary in design, capability and price, so it's important to understand what models and features will best suit your needs.

How to Choose and Buy an Electric Screwdriver - Features

Most models of electric screwdriver are cordless. Corded models are available, but are usually designed for specialised or commercial use.
Take a look at some of the main features found on electric screwdrivers:

• Power - Measured in volts, power on most models of electric screwdriver is delivered from a rechargeable battery, which can be recharged from a charging cradle. Typically the higher the voltage, the better the performance, so higher voltage models let you complete more tasks before the battery needs to be recharged.
• Variable speed - A variable speed option is useful when you're likely to be working with a range of materials. This is because different types of screws are easier to insert or remove at certain speeds.
• Shape - The design of the electric screwdriver should be comfortable, balanced and easy to target. Most designs of electric screwdriver include a pistol shape (great for tackling awkward angles), a straight shape (a good basic all round design) and a multi-positional screwdriver which can cover the widest range of angles.
• Torque settings - With different screws needing more force to turn through certain materials than others, the ability to choose a torque setting is very useful. Low torque is best for light work and higher torque settings are better for regular and tougher DIY jobs.
• Battery - Look out for lithium ion batteries as they are smaller, lighter, hold more power, and are faster to recharge.
• Spindle lock - Changes your electric screwdriver into a manual screwdriver for when you want to be completely in control of speed and torque.
• Light - Some models of electric screwdriver include a light for better visibility.
• Reverse Action - A reverse action function will save you time and effort when you're taking screws out. This will greatly reduce your frustration if you've got to undo a whole set of screws!

How to Choose and Buy an Electric Screwdriver - Warranty and Budget

A warranty ensures repairs or replacements under certain conditions, and is normally included when you buy electrical tools. It's worth comparing the warranties available on models of electric screwdriver. A warranty can last for around 1 - 2 years. Consider paying for an extended warranty if you choose to buy a more expensive model of electric screwdriver.
It's a good idea to set a limit on the amount of money that you're prepared to spend on an electric screwdriver, and avoid paying more for features that you won't use. By comparing prices between online retailers and taking advantage of special offers and discounts, you might be able to get a better model of electric screwdriver than your budget would normally allow.

quoted from : http://www.savebuckets.co.uk/buying-guides/diy-home-garden/electric-screwdriver.php
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