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2011年3月6日 星期日

How to Choose an Electric Screwdriver II

Cited from: http://www.ehow.com/how_7835419_choose-electric-screwdriver.html

By Jeffery Keilholtz, eHow Contributor

Screw guns have automatic reverse mechanisms.
Screw guns have automatic reverse mechanisms.
screwdriver #4 image by Adam Borkowski from Fotolia.com
Building a tool chest is an essential need for any homeowner or maintenance professional. Choosing an electric screwdriver is a central component to your toolbox needs, and selecting the proper device requires careful consideration. Electric screwdrivers generate a substantial amount of turn and torque, thus allowing you to fasten and unfasten screws much quicker than by using a standard manual device. Electric screwdrivers are sold at any home supply store and online.
Difficulty: Moderately Easy

Instructions

  1. Consider the shape of the screwdriver. Pistol-designed screwdrivers are beneficial for fastening and unfastening screws in hard-to-reach places or at odd slants. Rod-shaped devices are good options for standard usage, whether screwing at vertical or horizontal angles.

  2. Examine the voltage. Most electric screwdrivers can plug in and/or operate via battery power. Power rises as voltage increases. A basic homeowner may require a 3V screwdriver, while an electrician or laborer may need 7V of power. Ensure that your screwdriver battery provides enough voltage to suit your needs.

  3. Note speed settings. Some electric screwdrivers have manual settings, allowing you to increase or decrease the motor speed. If you are working with various types of screws, purchasing a screwdriver with a speed setting is a wise idea.

  4. Observe additional components. Trigger locks are handy to ensure safety while the screwdriver is not in use. Torque knobs are also beneficial to adjust the grip of your drill bit. Minor amounts of torque are useful on simple jobs, while higher rates of torque are needed on many commercial jobs.

  5. Examine the warranty. Purchasing any product with a warranty ensures you can return a broken product or have it repaired with little to no hassle. A one- or two-year warranty is recommended for a new electric screwdriver if you plan to use it on a regular basis.
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HIMAX台力牌电动起子www.ehimax.com 始于2001, 位于中国宁波,是专业的电动起子、电动螺丝刀、电批、电动工具制造商及供应商。就像HIOS好握速, Kilews奇力速, Delvo, Kolver, ASA好帮手, Conos技友等品牌, HIMAX台力牌电动起子也是世界最佳电动起子品牌。 HIMAX电动起子/螺丝刀/ 电批是专为精密电子及机械组装线及生产线设计的。因为HIMAX电动起子拥有精确的扭力控制,同时能够锁附各类大小的微型电子螺丝、细小螺丝,因此各项精密产品如平板电脑, 个人电脑, 计算机, 笔记型电脑, 数位相机, 手机行动电话,电视游戏机, 随身小型游戏机, 及其他随身电子产品设备等等,皆可采用HIMAX电动起子进行产品组装以确保生产品质。
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