You can get Drillpro MGN12 for 21.99 USD with coupon (from Banggood). Basically copy coupon, view price history or create e-mail price alert. What is the best price?
Latest coupon and price update (UTC):
Banggood (21.99 USD)
Banggood warehouse is located in China. As you can see I didn’t find any active coupon for this product right now… Is it a low price? This price is higher than average price (19.89 USD) for this item.
Link: Banggood product page
Price: 21.99 USD
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BG589b2e, BGd2f208, BGHTT15, BG20236Tool, BGf73ddc
(these coupons are old, so probably won’t work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – Drillpro MGN12 600mm Linear Rail Guide with MGN12H (-3 USD)
Aliexpress
Here are coupons that you can use.
Price history and price alert
Price history (for all/most countries) for Drillpro MGN12 500mm Linear Rail Guide with MGN12H is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).