Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. I am tired of searching coupons, but I found one for you…
Link: Banggood product page
Coupon (132.52 USD): BG123F2021
(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): BGSZD2, BG2020NS, BGIL12, BGOMG23, BGAFF10OFF, bGhOnEy10, BGherra, BGPTOOL, BGWow101, BGPToo15, BGPower15off, BG931bb3, BG123FBR
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Price history and price alert
Here is price history (for all/most countries) for Xiaomi Shunzao 12V 30Nm Electric Screwdriver Drill 2000mAh.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).