Includes: 1pc step drill bit according to the size you choosed
Item no.
HZ30387: 3-12mm 1/4 Inch Hex Shank Step Drill Bit Spiral Grooved
HZ30388: 4-12mm 1/4 Inch Hex Shank Step Drill Bit Spiral Grooved
HZ30389: 4-20mm 1/4 Inch Hex Shank Step Drill Bit Spiral Grooved
HZ30390: 4-22mm 1/4 Inch Hex Shank Step Drill Bit Spiral Grooved
HZ30391: 6-24mm 1/4 Inch Hex Shank Step Drill Bit Spiral Grooved
Features:
118° X-shaped opening, to reduces slippage of the opening
HSS Drill Bit Set For Metal , Wood, Plastic And Aluminum.
Ideal For DIY, Home and General Building/Engineering Using.
Ideal For using to cut holes in a variety of materials including steel, brass, wood, plastic, etc.
High speed steel,durable.
Nitriding coated to reduce friction and heat.
Triangle shanks design in order to prevent slippage when in chuck.