Tapered Button Bits:
Taper Degree: 6°, 7°, 11°, 12°
Diameter: 30mm, 32mm, 33mm, 34mm, 36mm, 38mm, 40mm, 41mm, 42mm
Buttons: 4, 5, 6, 7, 8
Flushing Water Hole Nos.: 1, 2, 3
Skirt: Short, Long
David Zhang
Liaocheng Jinquan Construction Machinery Co.,Ltd
E-mail: sales@jinquandrill.com
MSN: rockdrillingtool@hotmail.com
Skype: rockdrillingtool