This is the 50 Foot Commercial Hydrostar Drain Monster – Item#68284 from Harbor Freight.
Link: https://www.banggood.com/180pcs-M2-Steel-Hex-Socket-Head-Cap-Screw-Assortment-Set-4mm-To-16mm-Length-p-997272.html?p=ZW06116279860201609A
Music: Voicians – Seconds [NCS Release]