1.the diameter is 690mm, 2.for stones cutting . 3.no segment ,can not be used directly to cut stones. 4.material:steel .  Linyi Kunhong Tools Co.,Ltd 1.the diameter is 690mm, 2.for stones cutting . 3.no segment ,can not be used directly to cut stones.4.material:steel .alloy.iron ,diamond.5.high frequency welding or brazed welding or gas welding

200	190	20 22,23 25.4 50	1.8	13	16	3
230	220		1.8	16	16	3
250	240		1.8	17	16	3
300	290		1.8	21	16	3
350	340		2.2	24	16	3
400	390		2.5	28	16	3
450	440		2.8	32	16	3
500	490		2.8	36	16	3
550	540		3.5	40	16	3
600	590		3.5	42	16	3
625	615	60 80 100 120	3.5	42	16	3
650	640		4.0	46	16	3
700	690		4.0	50	16	3
725	715		4.0	50	16	3
750	740		4.0	54	16	3
800	790		4.5	57	16	3
850	840		4.5	64	18	5
900	884		5.0	64	18	5
950	940	60 100 150	4.0 5.0	64	18	5
1000	984			70	18	5
1100	1084			74	18	5
1200	1184			80	18	5

Our steel core size is from 250mm to 3500mm up to now, will be ready for bigger size on the end of this year. They are being used to cut stones only with segments onto the top of the teeth. the steel core is with best quality raw material, which is from Baosteel company in China and it can be without index holes.