Drill Sleeves Diamond Core Drill Bits DiameterSegment sizeSegment no.Connection20mm19X3.0X9.0mm 2(M14/M16/1/2"BSP5/8"-11)25mm14X3.0X9.0mm 332mm16X3.0X9.0mm 435mm16X3.0X9.0mm 438mm16X3.0X9.0mm 442mm20X3.2X9.0mm 452mm20X3.2X9.0mm 465mm24X3.5X9.0mm 578mm24X3.5X9.0mm 582mm24X3.5X9.0mm 592mm24X3.5X9.0mm 5102mm24X3.5X9.0mm 6Our Feat Quanzhou JDK Diamond Tools Co., Ltd. <<<123