Alloy bolt bit 
 Cross drill bit diamond drill bit word alloy anchor bolt drill bit 
 Model ZTY27 / 2 ZTY28 / 2 ZTY30 / 2 ZTY32 / 2 
 Hole diameter Φ27 Φ28 Φ30 Φ32 
 Connecting thread M14 × 1.5 M16 1/2-12 
 Remarks by conventional screw M14 × 1.5, with the other thread should specify when ordering 
 I produced the main bits are: diamond bit, carbide drill bits, word drill, cross drill, core drill bits, PDC bits, drill bits and other cylindrical cross 
 Coal mining company in Jining, Shandong Branch Main support the following products: 
 ◆ class diamond mining: diamond drill bit anchor bolt anchor drill PDC drill bit word alloy cross drill bit drill air drill coal pillar gear drill bits core drill hole geological drill bits non-core oil-geological drill drill drill drill B19 B25 B22 drill twist drill rod rod exploring water gas emissions drill drill drill geological 
 ◆ drill categories: rock drill electric rock drill jackhammer, air-leg rock drill internal combustion rock drill up the rock drill YDT30 electric rock drill Y26 jackhammer YL18 jackhammer Y19A jackhammer YT24 rock drill YT27 rock drill YT28 rock drill 7655 air-leg rock drill MZ7665 rock drill YN27 YN27C internal combustion internal combustion rock drill rock drill rock drill YSP45 YN30A up the internal combustion rock drill air leg FT110 FT120 gas air-leg leg 
 ◆ Bolt categories: Bolt from the tray into the anchor from the anchor into hollow grouting anchor bolt grouting hollow glass steel bolt steel bolt L bolt steel bolt steel tube dextral Slotted bolt prestressed bolt anchoring agent mesh 
 VIBRATION AND No. zhongmeigk06 Wang