Power Tools ,-::---, HILPLINES I For any queries about SUPPUER your drill ring the ( HELPUNES appropriate tele1 phone number during normal office hours. Bosch Advice Line 0895 838402 Hllka 0372 742077 Black Be Decker Service Technical Department 0753 500779 POWIR DRILLS IAFITY TIPS In conjunction with @ A:)SPA ' the Royal Society for the Prevention of Accidents, we have put together the following safety advice. .A Always read and follow the manufacturer's instructions before starting work. If you lend equipment, make sure that the user reads the Instructions for reference. .A Always fit a residual current device (RCD) to the electric socket and test it before using a power tool. This disconnects the electric circuit If there Is a fault (order Cat. No. 982/1321) . .A Wear safety goggles for DIY activities (see page 426 for details of our Safety Kit). .A Unplug the drill before fitting bits and use good quality sharp bits In the drill, making sure they are secured firmly in the chuck. .A Don't leave cables trailing over the edge of the work surface. When the job Is finished, put the drill away.
To help you choose the right tools for DIY jobs at home we have explained some of the more common features
Power Drills and Screwdriver Features Input Watta~
Tile power of the motor in your drill is measured by "input wattage". For toudt, heavy duty jobs, or frequent and prolonged use, a arm with a high rating is important.
Chuck Size
This refers to the diameter of drill bit shank which can be put into the drill.
Drills I Variable For more control and precision a variable speed drill may S~
be suitable. It will allow you to tackle a variety of tasks in different materials and thicknesses with greater accuracy than the two-speed drills. Always read the manufacturer's instructions before using variable or two-speed drills.
Reversing
Keyless Chuck
Allows you to change a drill bit quickly without the need for a chuck key.
The drill is able to rotate in the opposite direction to normal. This is handy for screwdrlving or removing a sticking drill bit.
Speed
Varying materials and hole sizes require different speeds and power. SingleS~
For straight forward drilling into wood, metal and plastic, a single speed drill may be suitable.
Two-S~
Hammer Action· For tough jobs like masonry or concrete drilling. Adrill with a hammer action literally "hammers" the drill bit into the wall (thousands of times a minute), as well as rotating it.
Torque Control
Drills with two speeds allow greater flexibility in drilling through hard or soft materials. Atwo-speed drill will also allow you to select either fast or slow speed measured in RPM (revolutions per minute). The higher the RPM, the faster the rotation of the dritl. When drilling into hard materials like masonry, you need to use higner speeds with hammer action.
Drilfs with torque control continuously monitor the "resistance" to the drill bit. This means that if you suddenly encounter an impenetrable area, the drill will stop rather than risk damage to itself. Torque control is particularly useful if you intend using your drill as a screwdriver as it "feels" the resistance of the screw and
IBOSCHI
-I , I" £2495 l 11 Fat I HILKA PROCRAFT CD1 00 DRILL •380watt. • Speed 2500 rpm. • Ill inch chuck.
- j 3! -£2750 ~ BlACK & DECKER BD561 DRILL • 400watt. • Speed 2500 rpm. 3 • .1 inch chuck.
BOSCH PSB 350 DRILL • 350 watt. • Speed 2600 rpm. • %inch chuck.
IBOSCHI I si £3950 I BlACK & DECKER BD562K DRILL • 400 watt. • 3.1 inch chuck. •Two speeds. • Hammer action. • Speeds 2100/2500 rpm. • 10 sanding discs, assorted wall plugs and 4 masonry drill bits induded. . Cat No. 710/6433
£36.50
BOSCH PSB 400-2 DRILL • 400watt. • Two speeds. • Speeds 220012800 rpm. • %inch chuck.
• Hammer action. • Front grip handle.
Cat. No. 710/7755
£39.50
BlACK & DECKER BD564 DRILL • 400 watt. • Hammer action. • Speed(s) 0-2500 rpm. • Wrth FREE accessory kit offer • Variable speed. available via leaflet. see 3 in-store for details. • .1 inch chuck. • Reversing facility. Cat. No. 71017944
£44.50