Clarke 6500005 Instrukcja obsługi i konserwacji - Strona 16

Przeglądaj online lub pobierz pdf Instrukcja obsługi i konserwacji dla Elektronarzędzie Clarke 6500005. Clarke 6500005 19 stron. Mortising machine

SHARPENING THE DRILL BIT & CHISEL

For best performance the chisel and bit need to be kept sharp. Blunt cutting

edges will give untidy and inaccurate mortises, and can cause overheating

and breaking of the chisel and bit.

Sharpen the bit by using a small smooth

file, following the original shape of the

bit. File the inside edge of the spur, the

sides of the brad point, and the cutting

edge inwards towards the flutes of the

bit to restore sharpness. Do not file the

outside edge of the spur as this will

affect the diameter of the bit.

Use a mortice chisel cutter with the correct size

pilot to sharpen the chisel. Two or three turns of

the cutter in a carpenters hand brace should be

enough to sharpen the chisel. Remove any burrs

from the outside of the chisel with a fine oilstone.

Chisels and bits will need replacing when they

become badly worn and difficult to sharpen.