diamond drill bit set : 1.brazed or laser welded core drill 2.for cured concrete ,reinforced concrete and other material

diamond  drill bit  set

DIAMETER	SEGMENT WIDTH	SEGMENT SIZE	THREAD SIZE
38mm	3	14 x 3.7 x 8	1/2" BSP Female
52mm	4	14 x 4 x 8	1/2" BSP Female
65mm	4	20 x 4 x 8	1/2" BSP Female
117mm	5	20 x 4 x 8	1/2" BSP Female
127mm	5	20 x 4 x 8	1/2" BSP Female

diamond drill bit set