... button bit, retract button bit, thread button bit. With ISO certificate & quality control. Button bits with 6tips, 7tips, 8tips, we do them according ... 33mm, 34mm, 36mm, 38mm, 40mm, 42mm, 44mm and so on. With different degree taper) Tapered Rod (Rod 19mm, 22mm, 25mm; Shank ... --89mm, T51--115mm, T51--127mm Please feel free to contact with us for more detailed specifications or catalog. ( function(){ var ...