About This 【Package Includes】5/8"-11 Thread 6pcs 6/8/10/35/50/65mm Drill Bits+10mm Finger Bit+2" Chamfer Bit+Milling Finger Bit +Hex. Beveling chamfer bit: for chamfering, rounding, beveling, trimming and shaping formed holes. Finger milling bit: for enlarging, rounding, grinding formed holes. 【Vacuum Brazed Diamond Technology】 More wear-resistant, more efficient, faster cutting speed and longer life than electroplated diamond bits. 【Wide Compatibility】Dry drilling/molding/setting/cutting of various materials, like porcelain, ceramic tile, granite, marble. Can use in dry or wet. Wet drilling prolong its life. 【Special design】Serrated design allows for quick dust discharge during drilling and is not suitable for clogging. 【Machine】Compatible with Angle grinder. Use the adapter(in our bag) to switch freely between the angle grinder and hand drill machine. Overview Material : Carbon Steel Finish Type : Diamond Shank Type : Threaded Brand : BGTEC Item dimensions L x W x H : 7.28 x 8.26 x 4 inches