Description: This is a ten piece set of lapidary grade core drills. They are best suited for a drill press and are great for hollowing out the inside of stone ring shanks and bangles, as well as making large bead holes.

Made In: China

Drill Bit Sizes: 3, 4, 5, 6, 8, 10, 12, 18, 32, 50mm
Shaft Diameters range from : 2.4mm-8.3mm
Overall Length: 50mm

Weight of all drill bits: 145g
Quantity: 10 Piece set