20 Pcs Snap on Ferrite Core Cord Ring RFI EMI Noise Filter Suppressor Cable Clip for 3.5mm/5mm/7mm/9mm/13mm Diameter Cable, Black auspowers_batchtwo or to make a hole

or to make a hole bigger

Threads Size: 1/2-13

and CC motors

Quality is similar to the ones you bought at Home depot

20 Pcs Snap on Ferrite Core Cord Ring RFI EMI Noise Filter Suppressor Cable Clip for 3.5mm/5mm/7mm/9mm/13mm Diameter Cable, Black auspowers_batchtwo or to make a hole20 Pcs Snap on Ferrite Core Cord Ring RFI EMI Noise Filter Suppressor Cable Clip for 3. 5mm 5mm 7mm 9mm 13mm Diameter Cable, Black [Feature] Helps reduce the E. M. I. black plastic closed ferrite core on the AC power cord for 5 mm AC power cords. Ideal for eliminating noise from USB, Firewire, telephone, power cord, coaxial cable, audio, video cable, etc. [Scope of application] 3. 5mm 0. 14in (inside diameter): for 0. 06 0. 14in 1. 5 3. 5mm cable