1,Auger Drill Can Be Flexibly Selected, S4, S5, S6,Pa,Four Kinds Are Available.2,Auger Drill Have Exceptional Lengths Of Extension Rods And The Size Of The Auger Drill Can Be Set In Accordance To Patron Necessities (Size Inside a Positive Range).3,Rock Auger Drill: It Suit To Rock, Pitch Or a Lot
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