You can create price alert here, copy coupons and view price history. What is best price?
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Rotor Bidirectional overrunning clutch, Motor 25, Sensor Angular velocity sensor, 000 rpm brush motor, Charging Mode Micro USB 5V Input, Battery 300mAh 10440 Lithium-ion battery, Main Chip STM32, Electronic Torque 2.8kgf.cm, Torque 30kgf.cm (manual mode), Screwdriver Bit 4M hexagon, Gearbox 1: 144 Integrated planetary gearbox, Body Material 304 Stainless steel(Silver)/Copper alloy(Grey), Charging Time 45min, No-load Speed About 270rpm, Running Time 30min (full power), Maximum, Screen 16*96 OLED, Operation Voltage 3-5V
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($95.71): BGAFF10OFF
2. ($95.71): bGhOnEy10
paste coupon code in your cart and click Apply after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): 33b9d8, TOOLS15, aff7off, bgssaff9, AFfbG10, BGMINI120, TS15prime, TISPrime01, BGWoodTool, Tools3, BGPowerTool15, BG2020NS, BG3074
(probably won’t work, but you can try them out)
Price history and price alert
Price history (for all/most countries) for MINI ES120 Electric Screwdriver is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).