Hunan Speedmade drilling
91#4 group of 8 teeth imported small tooth ball piece
Suitable for limestone, interbedded, shale, bedrock, slate, dolomite, cave stratum, etc...
Fast footage, wear resistance, long life
The reinforced version with grooves around the carcass has stronger wear resistance
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Contact: Mr Chen
Phone: +86 13874354330
Tel: +86 746 8323309
Email: pearldrill02@guangzhouintl.com
Add: 3rd Floor, Wanli Market, Fenghuang Road, Lengshuitan District, Yongzhou City ,Hunan Province China