If you're looking for the best drilling inserts for your project, look no further! We've reviewed and scored many products in the drilling inserts category, with products ranging from a respectable 7.5 up to an outstanding 9.9. And the brand that stood out from the rest? YG-1. Their S01121 HSS M4 Spade Drill Insert with a TiN finish, 5/32" thickness, and 15/16" insert takes the top spot with its unbeatable performance. Trust us, you won't find a better drilling insert on the market. Keep reading for our full top ten list and dive into the world of drilling inserts.
By Jonathan LeviUpdated on October 15, 2025 12:55 PM