Thumb Score: +14

Amazon [amazon.com] has Malco TS1 TurboShear 20 Gauge Capacity Sheet Metal Cutting Attachment for $43.18.
Shipping is free.

amazon.com/dp/B0000AQK7C [amazon.com]

Lowe’s [lowes.com] has Malco TS1 TurboShear 20 Gauge Capacity Sheet Metal Cutting Attachment (TS1) for $43.18. Shipping is free.