Eachine1 5pcs Triangle Shank Imperial Pagoda Step Drill Set

Description 5pcs Triangle Shank Imperial Pagoda Step Drill Set Specifications Drill Shank Diameter 1/4-1-3/8 6mm 3/16-7/8 6mm 1/4-3/4 10mm 1/8-1/2 10mm 3/16-1/2 10mm Material: High Speed Steel Application: This step drill set can be applied to auto processing, aviation, panel beating, electrical installation work and so forth. Scale of Step Drill 1/4-1-3/8: 3/16, 1/4, 5/16, 3/8, 7/16, 1/2" 3/16-7/8: 1/8, 5/32, 3/16, 7/32, 1/4, 9/32, 5/16, 11/32, 3/8, 13/32, 7/16, 15/32, 1/2" 1/4-3/4: 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4" 1/8-1/2: 3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8" 3/16-1/2: 1/4, 3/8, 1/2, 5/8, 3/4, 7/8, 1, 1-1/8, 1-1/4, 1-3/8" Package included 1 x 1/4-1-3/8 Step Drill 1 x 3/16-7/8 Step Drill 1 x 1/4-3/4 Step Drill 1 x 1/8-1/2 Step Drill 1 x 3/16-1/2 Step Drill 1 x Aluminum Box