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The DynamO is a hole cutting template for resonant Bass drumheads that provides a vent hole for all drum mics.
– Port 4″- 6″ holes with this cutter and pin (1/pack)
A 5" black adhesive-backed hole cutting template used for cutting and reinforcing Portholes in front bass drumheads.
The DynamO is a hole cutting template for resonant Bass drumheads that provides a vent hole for all drum mics.