Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (39.79 USD): BGwh3979
Coupon (44.99 USD): BGAFF10OFF
(CouponsFromChina.com tip: this code has to be applied in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): TS15prime, BGSD152, TISPrime01, BGWoodTool, BG2Wiha3, Tools3, BGXIAOMI152, BG11BB, BG111BB, BGPowerTool15, BG2020NS
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
Check out price history chart (for all/most countries) for Wiha Zu Hause Electric Screwdriver With Bits Xiaomi Youpin.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).