Prokit's Industries PT-1080 - Manual (Page 10)

the arrow points to on the torque control knob, the larger the maximum torque that can be
applied before the torque clutch will slip.
To set the machine to maximum available torque twist the torque control knob until the
arrow points to the drill symbol. In this position there is no slip in the torque clutch.
Select a lower torque for insertion/removal of screws to avoid damage to the work-piece
(in particular wooden work-pieces) or to the screw. For drilling select a higher torque
setting. Do a test first on an item which is not your final work-piece and adjust the desired
torque accordingly before you start the actual work.
Operation for working
Only use tool bits which can be securely fastened in the chuck and for which the drill has
been designed.
1. Drilling
Check whether the drill bit is correctly inserted and tightly fastened before you start the
machine. Use properly sharpened drill bits. Use screwdriver bits that are not overly worn.
At the start of each drilling operation select a lower speed. For large holes drill with a
smaller drill bit first and then enlarge the hole using a larger drill bit.
2. Drilling in Wood
For drilling in wood use a wood drill-bit. Protect or fasten the work-piece in a suitable
holder. Mark the positions of the holes to be drilled with a sharp tool or a nail. Do not apply
excessive pressure against the work-piece with the machine.
3. Drilling in Metal
For drilling in metal use a steel drill-bit. Always provide sufficient cooling with suitable
non-inflammable coolants. Protect or fasten the work-piece with a suitable holder. The
work-piece should lie flat on the work bench. Mark the positions of the holes to be drilled
with a centre-punch. Do not apply excessive pressure against the work-piece with the
machine. Allow the drill to operate at its normal operating speed.
Important! At the start of drilling select a lower speed to avoid the bit slipping away from
the desired hole location. If the drill-hole is deep, the drill-bit may become jammed in the
hole. In this event a high torque could damage the drill bit or the drill. If the bit becomes
jammed, hold the machine firmly and immediately release the On/Off trigger. Switch to
anticlockwise rotation, and use a low rotation speed to remove the jammed drill bit more
easily.
4. Drilling in Plastic
For drilling in plastic use a steel drill and follow the same instructions as for drilling in
wood.
9