Wadfow WJD3405 4-12mm, 6-18mm, 4-22mm, 6-35mm blue

size: 4-12mm, 6-18mm, 4-22mm, 6-35mm

Wadfow WJD3405 5-piece step drill bit set for drilling thin metals, plastics, and sheet materials. It includes bits sized 4-12 mm with 1 mm and 2 mm steps, 6-18 mm with 2 mm steps, and 4-22 mm with 2 mm steps, all with universal 1/4 inch hex shanks and sharp cutting edges.