... sale 2)Min. Order: 2000 pieces 3)Type:X,XX,EX,EXX,EC,ECC,ESF,ESSF,ESD,ESSD,EY, ... EYY Dingrun High Quality Self-drilling Anchor Drill BitSpecification:1)It's ... S X Forged cross-cut drill bit Φ42/51 Φ51 XX Two stage cross-cut drill bit Φ110 Φ110 Φ130 ... have the characteristics of small-sized, heavy-wall thickness, high precision, inner or outer special shaped profiles. They are ...