TIVOLY Doctor XP Guia De Inicio Rapido página 7

ThE shARPEnInG OF ThE DRILL bIT
03
6
Turn on the sharpener
A grinding noise (zzzzZZZZZzzzz) should be heard at the end of each half turn and during
the sharpening of each side of the drill bit.
The number of half turns depends on the drill bit diameter. E.g. :
Ø 2.5 mm drill bit from 2 to 4 half turns.
Ø 3.2 mm drill bit from 4 to 6 half turns.
Ø 9.5 mm drill bit from 16 to 20 half turns.
sPLIT POInT shARPEnInG OF METAL DRILL
04
bITs (OPTIOnAL)
VERIFICATIOn OF ThE TAPER AnGLE
05
Correct
taper
angle
7
Insert the chuck into the sharpe-
ning window by aligning the white
mark (a) of the chuck to the metal
stud (b) in the sharpening window
(c)
After the sharpening operation engage the chuck a first
time in the thinning window by aligning the window marker
(c) with the chuck marker (a), then remove the chuck from
the window and rotate it 180° to reengage it using the
(a)
opposite marker (a'),
(a')
If the taper angle is insufficient :
Relaign the drill bit by introducing the chuck guide into one
of the notches to the left of the 118° mark, Then repeat the
sharpening operation.
Insufficient
taper
angle
(a)
(b)
7
8
Carry out an even number of
half turns (clockwise) by firmly
pressing the chuck cam on the
cam guide.
Pressure must be constant and
the movement must be even.