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Figure 4 shows how annular cutters operate. As the cutter penetrates the workpiece, the
pilot pin recesses into the arbor and tightens the spring. As a result, after the cutter goes
through the entire thickness, the slug core is expelled from the cutter.
arbor
spring
annular cutter
pilot pin
slug core
Figure 4. Annular cutters operation
Annular cutters are designed to establish only through holes shown in Figure 5. Establishing
incomplete through holes requires not using the pilot pin.
incomplete through holes
complete through holes
Figure 5. Types of holes to establish with annular cutters
IMPORTANT INFORMATION
Only use your Minibeast AUTO to cut through single layers of material when using standard
annular cutters.
Do not attempt to cut through multiple layers/stacks/laminates of material with your (Insert
Model) magnetic drilling machine using standard annular cutter. Once the first plate has
been drilled, the centre slug will retain in the cutter. Attempting to continue the cutting
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