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5 D8 100 200 3T 8R0
Designed for machine use only—not for handheld drills
please pay attention to the strength and drilling angle to prevent damage to the drill bit model
BB Rotary Torx Broach
TiCN coating
BB Micro Drill (0.3mm~3.99mm) D=4mm Corner Radius 5 D8 100 200 3TName: BB Micro Drill Material: Micro grained carbde Number of flutes: 2 Series: BB2055 Diameter of shank: 4mm Application: For general purpose Cuting diameter Shank diameter (D) Cuttlng length (L) Total length (OL) Angle Tolerance 0. 3~0. 5 4 4 50 118 0. 005 0. 51~0. 99 4 6 50 118 0. 005 1. 01~1. 49 4 8 50 118 0. 005 1. 51~1. 99 4 10 50 118 0. 005 1. 0 4 11 50 118 0. 005 1. 1 1. 1 1. 2 1. 2 1. 25 4 12 50 118 0. 005 1. 3 1. 35 1. 4 1. 45 1. 5 1. 55 1.