Basically copy coupon, view price history or create e-mail price alert. You probably want to know what is the best price?
Chain Speed 10m/s, Chain Material High Carbon Steel, Weight 2.2Kg, Material ABS+Metal, Rotating Speed 3000r/min, Color Red, Name Electric Saw, Guide length 12 inch
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):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($105.79): BGCAPITALOS8
2. ($105.79): BGCOUPERT8
put item in your cart and apply coupon code there 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): BGSaleFeb8, BGSaleAD, BGGTT13, BGMARCHSALE, BG20236Tool, BGGT12
(these codes were not working in latest coupon update, but you can check them out anyway)
Price history and price alert
Price history (for all/most countries) for 12inch 388VF Electric Chain Saw with 2 Batteries 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)).