CNC Spoilboards / Wasteboard Cams and Clamps Digital SVG - Etsy
Make your own CNC workholding with your LongMill | Sienci Labs
Hold Down Clamp for T-Track, 5-1/2"L x 1-1/8"W | Rockler Woodworking and Hardware
Genmitsu 4 Pack Hold Down Clamp Kit, CNC Router Clamp for Woodworking and Metalworking, 3-7/20''L x 4/5'' W x 2-7/10''H, Compatible with CNC Router Machine PROVerXL 4030 &3040 Extension Spoilboard - Amazon.com