Instructions

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9. Operating tips
a) Drilling
• To prevent cracking of drill holes (e.g. while drilling tiles) start to drill with low rotation speed and then increase it.
• By using a slow starting speed, you are able to keep the bit from “wandering”. Increase the speed as the bit
“engages” into the workpiece.
• Always hold the product perpendicularly to the point to be drilled. Holding it at an angle may cause slipping or
jamming of the bit.
Drilling in metal:
• The harder the material, the greater the pressure you need to apply to the tool.
• Do not force or apply side pressure to elongate a hole.
• Punch a hole with a bit rst to prevent the bit from slipping.
• For harder materials, use slower speeds.
• Lubricate the tip of the bit occasionally with cutting oil.
• If the hole to be drilled is fairly large, drill a smaller hole rst, then enlarge to the required size. Maintain enough
pressure to ensure that the bit does not spin in the hole.
• Maintain speed and pressure to avoid overheating of the bit.
Drilling in wood:
• Always hold the product perpendicularly to the point to be drilled. Holding it at an angle may cause slipping or
jamming of the bit.
• Begin drilling at a low speed to prevent the bit from slipping.
• Maintain enough pressure to keep the drill “engaging”.
• When drilling through holes, place a block of wood behind the workpiece to prevent ragged or splintered edges on
the back side of the hole.
Application Symbol Gear Speed
Concrete, brick
2
High
Steel
1
High
Tile
1
Low
Wood
2
High