Description:

45# STEEL: This drill sleeve is made from high-grade 45# steel, has a great wear-resisting performance and a long service life.. WIDE APPLICATION: For the usage of taper shank cutter, taper shank drills, taper shank reamers, improving work efficiency.. 4 TYPES: There are 4 types for your to choose , can meet your different needs.. STRONG SHOCK-RESISTANCE: This bits holder adopts overall quenching process, has a strong shock-resistance.. SMOOTH SURFACE: High accuracy, fine workmanship, inside and outside are very smooth..