Machifit Eb Lathe Quick Change Tool Post Holder Set (Repeatability [mm] 0.01, Recommended top slide width [mm] 45-60, Turning diameter [mm] 120-300, Adjustable turning tool height [mm] 4-12, Type(Optional) Aa(45#steel)/Eb(304 stainless steel)).
Basically copy coupon, view price history or create e-mail price alert. You probably want to know what is the best price?
Aliexpress
There’re some similar (or not) items on Aliexpress
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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. I found coupon for you. Check this out.
Link: Banggood product page
1. ($223.78): BGCAPITALOS8
apply code in your basket (cart) after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/i1u
Old coupons (from the oldest to the newest): BG8bdf5e, BGherra, BG742a8c, BGe8ac64, BGc8d4ea, BG00c906, BG41677, BGGines, Tabby20, BGHITD21, BGDCTOOLS, BGTACC18, BG589b2e, JanBGCoupon8, BGSaleFeb8, BGSaleAD, BGHTT15, BGMARCHSALE, BG20236Tool, BGAUGUST8, BGCOUPERT8
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Price history and price alert
Check out price history chart (for all/most countries) for Machifit Eb Lathe Quick Change Tool Post Holder Set. The lowest price was: $99.99.
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)).