ITEM NAME:6Pcs Woodworking Step Drill Bit 2.8*8Mm-3.2*10Mm Countersunk Head Wood Tape E7G2 6Pcs Woodworking Step Drill Bit 2.8*8Mm-3.2*10Mm Countersunk Head Wood Tape E7G2 T.C.T Hole Saw Series;H.S.S Hole Saw Series; Woodworking Hole Saw Series.Bi-Metal Saw Series.Arbors for Bi-metal Hole Saw Series Diamond Hole Drill Series. Color:orange + silver material:metal Size about:total length 55mm Counterbore drill:2.8*8mm 2.8*10mm 3*8mm 3*10mm 3.2*8mm 3.2*10mm Package Contents: 6*Countersunk drill