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This six-piece diamond drill bit set is designed for cleaner, more controlled holes in hard surfaces such as porcelain tile, glass, granite, and marble. The vacuum-brazed diamond cutting surface helps reduce edge chipping, while the hollow structure aids in chip removal for smoother progress.
The set includes bits in 6 mm, 8 mm, 10 mm, 12 mm, 14 mm, and 16 mm diameters (1/4", 5/16", 3/8", 1/2", 9/16", and 5/8"). Each bit features a 1/4-inch hexagonal shank for a secure grip in standard hand drills, cordless drills, and suitable bench drills. The 6 mm bit is approximately 2.64 inches long; the 8–16 mm bits are approximately 3.15 inches long.
Designed for dry drilling, use light pressure and pause periodically during extended sessions to control heat. For best results, start at a 45-degree angle to create a starting groove, then gradually bring the drill upright. Do not use hammer or impact mode on tile, glass, ceramic, or natural stone.
Reviews imported from our previous store / verified customer feedback
Honestly, these diamond bits are a lifesaver for our bathroom remodel. We used the 8mm and 10mm for shower tile and it made super clean holes without any chipping. Never had a set this precise before, really worth it.
Got this set for a few small projects around the house. The different sizes, especially the 6mm for anchors, came in super useful. For the price, they definitely get the job done on tougher surfaces like concrete. Not pro-grade but good value overall.
My husband was skeptical about these, but they've been fantastic. We've used them on some thick granite for countertop installs, and they hold up way better than the cheaper ones we tried. Having the variety of sizes included in one kit is really convenient when tackling different tasks.
