ALFRA ROTABEST 80SP RL-E Mode D'emploi page 18

wORking wiTh AnnuLAR cuTTERS (wELdOn ShAnk)
• Mount the tool holder MT 3 in arbor.
• Push the ejector pin (center pin) through the head of the annular cutter.
• Mount the ROTABEST rotary cutter according to drawing. The setscrew must be positioned in the center
of the lateral flat side of the Weldon shank. Fix tightly.
• First place the annular cutter with ejector pin on a grained spot or technical crack.
• Spot-drill until the entire cut edge is formed as a circle. Drilling with ALFRA ROTABEST cutters does not
require much expenditure of force.
• During the drilling process, the cutter should constantly be cooled. Optimal cooling is possible by
internal cooling with our coolant unit.
• Do not stop the motor during the drilling process. After the process, draw the cutter back
with the motor running.
• Remove chips and core after each drilling.
!
Remove chips with chip-remover. do not touch with bare hands. danger of injury!
wORking wiTh TwiST dRiLLS
1. Insert the drill chuck with the adapter in the arbor.
2. Insert the twist drill in the drill chuck and tighten with a drill chuck wrench.
3. Twist drills with MT 3 shanks can be inserted directly into the arbor.
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The motor can continuously be adjusted on the slide by releasing
the allen screw (for maximum stroke range when using twist drills,
drill chucks and tapping attachments).