Punches
Punches are used to start holes for drilling; to punch holes in sheet metal; to remove damaged rivets, pins, or bolt; and to align two or more parts for bolting…
Bevel Protractor
A bevel protractor (Fig. below) is a tool for measuring angles within one degree. It consists of a steel rule, a blade, and a protractor head. The protractor head has…
Scribing a circle
Sharp point used to score a fine line in the birch plywood connected to each other by a piece of 3/4” × 3/8”. The beam compass is used to scribe…
Dividers & Trammel
Dividers Dividers are very useful instruments employed in marking work. They are similar in construction to the calipers but their legs are not bent. Also, the free ends of the…
Surface Gauge
It is a principal marking tool in a fitting shop and is made in various forms and sizes. It consists of a cast iron sliding base fitted with a vertical…
Inside & Outside Calipers & Scribers
Inside & Outside Calipers Calipers are a type of measuring device typically used to measure diameters and distances or for comparing sizes. As an aviation maintenance technician you must be…
Marking And Measuring Tools
The common operation performed by these tools include marking, measuring, setting out angle and parallel lines and testing. All tools do not perform every operations but all those tools which…
Calibration
Calibration ensures the accuracy of the tools, and inspection, measuring and test equipment used to return aircraft, engines and components to service. Calibration minimises measurement errors and uncertainties to acceptable…
Allowance (engineering)
In engineering and machining, an allowance is a planned deviation between an actual dimension and a nominal or theoretical dimension, or between an intermediate-stage dimension and an intended final dimension.…
WORKSHOP PRACTICES
Care To Be Taken When Handling With Hand Tools A machinist must be skilled in the use of the numerous hand tools, which have been designed to make his work…
