BB Micro Drill (0.3mm~3.99mm) D=4mm Corner Radius Designed for machine use only—not

Designed for machine use only—not for handheld drills

③ Diamond nail drill bits are used to remove the cuticle

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 Designed for machine use only—notName: 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.