5-piece set of British titanium plated straight groove step drill bits

Triangular handle, specifications: 1/4 handle 3/16-1/2, 1/4 handle 1/8-1/2, 3/8 handle 1/4-3/4, 3/8 handle 1/4-1-3/8, 3/8 handle 3/16-7/8

Plastic plate, thin iron plate. 20 sets per outer box, size 32*30.5*23.5, 12kg