4-22mm step drill tail for 10-step white iron (AS2-100422)

• 10-step white iron 4-22mm step drill tail (HSS step drill), spiral body design, fast chip removal speed and high work efficiency
• Hexagonal shank step drill tail, can drill holes of various specifications with one drill bit
• Step drill bit, durable and long service life

Be applicable:

• Tinplate, copper, iron sheet

Product specifications:

• 10-step size: 4, 6, 8, 10, 12, 14, 16, 18, 20, 22mm
• Material: HSS M35
• Handle: 1/4” hex handle

Origin:

• Taiwan