I have just checked coupons. The lowest price I could get is 19.99 USD for Inch mm Woodworking Scriber (in Banggood). Price history, coupons and price alert are available on this page. Let’s see what best price is ATM.
Latest price update (UTC time):
Banggood (19.99 USD)
Banggood warehouse is located in China. CouponsFromChina software could not find any coupon for this product in Banggood. I think you want to know if the price is good. Hmmm, price is higher than average (which is 18.59 USD right now), so better set price alert down below…
Link: Banggood product page
Price: 19.99 USD
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGXB38, BGDRB18, BGU53479, BGdf3e61, BG646c02, BG8e5aca, BGWG122001, BGc1b94d, BG101cc0, Tabby20, BGGines, BG02cf64, BG111ddb, BGWT15, BGa0b557, BGc8412f, BG20236Tool, BGWDT15
(these coupons are old, so probably won’t work)
Aliexpress
Click here… to search for Drillpro Inch mm Woodworking Scriber Gauge on Aliexpress
Here are coupons that you can use.
Price history and price alert
Price history (for all/most countries) for Drillpro Inch mm Woodworking Scriber Gauge is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).