Dremel-561-Multipurpose-Spiral-Cutting-Bit-Multipacks-Dremel-26150561JA-p-These-multipurpose-spiral-cutting-bits-from-Dremel-can-be-used-with-a-power-drill-on-wood-plastic-fibreglass-and-vinyl-p-Dremel-26150561JA-561-Multipurpose-Spiral-Cutting-Bit-Multipack-3-Pack