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LOCKSMITH AND SECURITY PROFESSIONALS’ EXAM STUDY GUIDE phần 3

Điều quan trọng là phải biết rằng một khóa cửa chỉ là một thiết bị fastens một cánh cửa cho một hoặc nhiều bên một khung cửa. Sử dụng một khóa trên một cửa mỏng ốp vào một cánh cửa với các bản lề yếu là giống như cách sử dụng một khóa móc hạng nặng để đảm bảo một chuỗi giấy. | 56 Locksmith and Security Professionals Exam Study Guide While the automobile has been with us since the beginning of the twentieth century the lock was adopted slowly. However by the late 1920s nearly every auto had an ignition lock and closed cars had door locks as well. Current models can be secured with half a dozen locks. This chapter explains how to open and service all kinds of vehicles. Opening Locked Cars Car opening can be a lucrative part of any locksmithing business. For some it s the biggest source of income. To offer car-opening services you only need a few inexpensive tools and some technical knowledge. In this chapter I show you how to buy and make the tools you need and I give you detailed instructions on how to open most cars. I also tell you about the business matters you need to know. In the interest of self-disclosure I should point out that several years ago I was hired by a major automotive lock manufacturer to prepare and edit its car-entry manual which included creating new entry techniques and designing tools. At the time it was one of the most comprehensive and bestselling publications of its kind. Although the manual is out-of-date copies are still being sold. I no longer work on that publication. The suggestions and tool designs I give here are original and they aren t meant to promote any company s products. Tools You Need Car-opening tool sets sold through locksmithing supply houses may include 40 or more tools. Toolmakers point out that the variety is necessary or at least helpful because of the constant lock-related changes made to new cars. Some of the uniquely shaped tools are designed for one specific make model and or year of car. Whether or not all the new specialized tools are worth the money is debatable. But a continuous supply of new tools means recurring revenue for the toolmakers. You can open most cars with only five simple tools all of which you can make yourself. In some cases not only is this cheaper but the tool will