Operation
OPTIMUM
M A S C H I N E N - G E R M A N Y
21 / 10 / 2008
Page 26
Operation Bench drill B16 H Vario ; Version 1.0.2
©
200
8
GB
4.9
Cooling
The friction generated during rotation can cause the edge of the tool to become very hot.
The tool should be cooled during the drilling process. Cooling the tool with a suitable cooling
lubricant ensures better working results and a longer edge life of the tools.
This is best realised by a separate cooling equipment. If there is no cooling equipment included
in the delivery volume, you can cool by means of a spray gun or a washing bottle.
CAUTION!
Danger of injury due to brushes getting caught or pulled in.
Use a spray gun or a washing bottle for cooling.
INFORMATION
Use a water-soluble and non-polluant drilling emulsion which can be obtained from authorised
distributors.
Make sure that the cooling agent is being collected.
Respect the environment when disposing any lubricants and cooling agents.
Follow the manufacturer’s disposal instructions.
4.10
Before starting the working process
Before you start working, select the required speed. It is depending on the drilling diameter and
on the material used.
„Determining the cutting speed and the speed“ on page 28
„Speed table“ on page 24
WARNING!
For drilling jobs, it is necessary to
clamp the workpiece firmly to pre-
vent the bit catching on the pieces.
Example of suitable clamping
devices include a machine vice or
clamping jaws.
Img.4-9: Seats for clamping blocks
Put a wooden or plastic board beneath the workpiece to avoid drilling through to the work table,
vice, etc.
Use the drill depth stop when you want to have several bore holes with the same depth.
When working with wood, make sure to use an adequate dust extraction unit, as sawdust can
constitute a health hazard. Also use a suitable protective mask for any work that generates dust.
seats for clamping
blocks
(14 mm)
