850W ROTARY HAMMER ENB465DRH
DRILLING OPERATION
Drilling wood
1. For drilling into wood, ensure the selection switch is set to the regular drilling function (drilling
mode only).
2. When drilling into soft wood, the drill should be operated at high speed.
3. When drilling into hard wood, the drill should be operated at low speed.
4. Ensure you are using a twist drill bit.
5. Ensure the workpiece is clamped or anchored firmly before operation.
6. Apply pressure in a straight line to the drill bit while maintaining enough pressure to ensure the
bit bites
into the material.
7. When drilling into wood the bit may overheat unless pulled out regularly to clean the chips from
the flutes.
8. When drilling into materials that may splinter use a back-up block of wood.
Drilling metals
1. For drilling into metals, ensure the selection switch is set to the regular drilling position (drilling
mode only).
2. It is important to lubricate the tip of the bit from time to time with a cutting oil. The exceptions to
this are
iron, brass, aluminium, copper and cast iron.
3. Before commencing drilling make an indentation with a centre punch. This will help prevent the
bit from
slipping.
4. Operate the drill at a slow speed.
5. When drilling large holes it is advisable to drill a smaller hole first.
6. Maintain firm pressure on the drill so the bit does not wonder. A wondering drill bit may cause
injury.
7. Avoid the drill bit spinning freely in the hole after it is drilled. This will cause the bit to become
dull.
Drilling or chiseling masonry
1. For drilling into stone, bricks, marble and concrete, ensure the selection switch is set to the
hammer or hammer drilling mode.
2. Ensure that a masonry drill or chisel bits is being used.
3. Maintain firm pressure on the machine so the bit does not wonder. A wondering bit may cause
injury.
4. Carbide tipped masonry bits should be used for all masonry drilling.
