10pcs Diamond Core Drill Kits Including:1),Φ127x170mm core bits 1pc2),Φ117x170mm core bits 1pc3),Φ65x170mm core bits 1pc4),Φ52x170mm core bits 1pc5),Φ38x170mm core bits 1pc6),10x200mm A Thraed pilot drill 1pc7),6x50mm Drift Key 1pc8),10x240mm SDS Thread adaptor 1pc9),12x240mm HEX Thread adaptor 1pc10),10x115mm SDS Thread adaptor 1pc