I've never used a diamond drill so I have no basis for comparison. under water) in a very hard granite river rock. I used 6 bit and it was pretty slow. I used a center punch to mark the holes before drilling and still the drill bits wanted to drift.
High-Performance Bosch BS80 6W Bandsaw - 80 Inch 4 Inch Blades
11 Review
πͺ DEWALT DW3984C Portable Blade Set of 3-Pack
10 Review
πͺ Bi-Metal Cutting Blades: Imachinist S933414 - Enhancing Precision and Performance
10 Review
πͺ Durable DEWALT DW3986C Portable Blade 3 Pack for Efficient Cutting
10 Review