City and Guilds Level 1 Unit 114 Power drills

Level 1 Diploma in Carpentry and Joinery

© 2013 City and Guilds of London Institute. All rights reserved. 1 of 8

PowerPoint presentation

Portable power drills

Unit 114: Prepare and use carpentry and joinery portable power tools



Aim

Introduce learners to portable power drills.

Objectives

• Identify at least three types of portable power drills.

• State the uses of at least two portable power drills.

• Identify at least two parts of a portable power drill.

• List at least two voltages used with portable power drills.



Power drills

Power drills come in many different forms for many different jobs.

They are basically in four main categories:

• drill drivers

• auto-feed screwdrivers

• percussion drills

• SDS hammer drills.

Many of these drills accompany each other when used on certain tasks. For example, an SDS hammer drill or percussion drill may be used to drill a hole into masonry, and then (after using the correct wall plug) the drill driver will be used to drive the screw into the plug providing a secure fixing.



Drill drivers

• Highly versatile and can be used with different bits.

• They insert and remove screws, cut circular holes with a saw cutter, or buff and polish.

• Various designs of chuck are available for rapid interchange of bits.

Images courtesy of www.screwfix.com. Reproduced with permission.



Percussion drills

• Has a percussive hammer effect which enables it to bore into hard materials such as bricks, blocks, stone and concrete.

• This percussive action is optional and is brought into operation by means of a switch.

• It can also drill free from percussion and be used to drill holes into materials such as timber, plastic or steel.

Images courtesy of www.screwfix.com. Reproduced with permission.



SDS drills

• Has a hammer effect which is used to bore holes into hard masonry products such as bricks, blocks, stone and concrete.

• The rotation action operated by a switch and is easy to discard.

• The still hammer action may be used when chasing walls.

• This drill also has a unique chuck which requires the drill bits to have a certain style of insert end.

Images courtesy of www.axminster.co.uk. Reproduced with permission.



Auto-feed screwdriver

• Used when continuous screws are being driven.

• They save time.

• Available corded and cordless.

• The screws are attached together on a plastic reel and feed into the nozzle of the drill ready to be inserted into the material.

• Can you think of a task or job that may require a auto feed screwdriver?

Image courtesy of www.axminster.co.uk. Reproduced with permission.



Any questions?

Education

City and Guilds Level 1 Unit 114 Power drills