Prokit's Industries PT-1441 - Manual (Page 8)

PT-1441 User’s Manual
www.prokits.com.tw 7
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 holes 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.
5. Drilling in Stone, Brick, Masonry or similar
For drilling in walls, stone, masonry etc. use a masonry-bit. Do not put too much pressure on the
machine. Follow the same instructions as for drilling in metal.
6. Using the Drill as a Screw-driver
Before using the machine check whether the screw-bit is inserted correctly. Avoid over-tightening
screws, otherwise the screw head may be damaged or stripping of the threads may occur.