OPTIMUM
M A S C H I N E N - G E R M A N Y
Operation
Version 1.0.3 dated July 22, 2014
Page 34
Original operating instructions
B30 VGM
US
INFORMATION
Use a water soluble, environmentally compatible drilling emulsion procured from the specialized
trade.
Re-use cooling agents and lubricants.
Dispose of the no longer used coolant and lubricating agents in an environmentally friendly
way.
Follow the manufacturer's disposal instructions.
4.8
Working with the machine
4.8.1 Preparation
WARNING!
During drilling work it is necessary to firmly secure the piece to be drilled, in order to
ensure that it is not moved by the bit. Examples of suitable securing of the tool includes
a machine vise or securing clamps.
Put a wooden or plastic board beneath the piece so that you do not drill through to the work
table or the part-holder bolt.
If necessary, adjust the required drilling depth using the depth stop to obtain a constant result.
Make sure to use a dust remover unit when working with wood, as sawdust can be harmful to
health.
Use a suitable protective mask for any work that generates dust.
First, select the speed of the bit. This will depend on the diameter of the bit being used and
on the material.
"Determining the cutting speed and the speed“ on page 34
4.8.2 Drilling
WARNING!
Danger of clothing and/or long hair getting caught.
Wear closely fitting clothes when drilling.
Do not use gloves.
If necessary wear a hairnet.
CAUTION!
Danger of crushing!
Do not place your hand between the drill head and the spindle. Risk of crushing due to
the spindle lever. The spindle is reset by means of a recuperation spring. Do not release
the spindle lever when resetting the spindle.
Spindle sleeve
Use a constant spindle feed when feeding the spindle manually but not too forcefully.
Drill
Thin drill bits easily break. Retract the drill bit for deep holes more often in order to extract
the drill chips from the hole.
Cooling lubricants reduce the friction and increase the service life of the drill bit.
