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Module one: History and Safety
Module four: Specialist Electricians Tools
Module three: Core Electricians Tools
Module three: Core Electricians Tools
Module three: Core Electrician's Tools
Screwdriver Types
Engineer's Screwdrivers
This is a slotted type screwdriver with a flared tip. Ideal for general purpose uses with slotted head screws.
Instrument Screwdriver
This is a slotted screwdriver with a parallel tip. This is designed for turning a screw at the bottom of a hole or in other restricted spaces.
Strikethrough Screwdriver
This is a screwdriver where the blade goes right through the handle. At the top of the handle is a striking plate.
Ratchet Screwdriver
Ratchet screwdrivers allows screws to be loosened or tightened without releasing grip on the handle. This is convenient for keeping a constant pressure on the screw and keeping the tip in place.
The drive can be changed from clockwise to anticlockwise rotation. In addition the ratchet can be locked so that the driver acts as a normal screwdriver.
Stubby Screwdriver
Stubby screwdrivers are shortened versions of regular screwdrivers. Useful for cramped spaces where access to screws is much tighter.
More torque is required form the user for operation, as the blade is much shorter, there is no flex in the shaft.
Precision Screwdriver
An evolution to the watchmakers screwdriver, a precision screwdriver has a free spinning cap, so the user can apply pressure with their palm/finger, then spin the screwdriver with precision as they do not need to apply pressure with the turning hands/fingers.