ALFRA ROTABEST 80SP Mode D'emploi page 16

wORking wiTh AnnuLAR cuTTERS (wELdOn ShAnk)
• Mount the Tool Holder MT 3 into 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 the ejector pin on a marked center or marking.
• 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 drill chuck with adaptor in the arbor.
2. Insert twist drill in drill chuck and tighten with drill chuck key.
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).