3X Step Drill Cone Drill Bits, High Speed Steel 10 Steps 1/4 to 1-3/8 Inch

3X Step Drill Cone Drill Bits, High Speed Steel 10 Steps 1/4 to 1-3/8 Inch Beskrivelse

step drill bit with 10 step sizes: 1/4 inch, 3/8 inch, 1/2 inch, 5/8 inch, 3/4 inch, 7/8 inch, 1 inch, 1-1/8 inch, 1-1/4 inch, 1-3/8 inch
Tri-flatted shank of step drill fits into drill chuck of power tools securely and avoids slide
EASY DRILLING: Two-fluted design provides faster, smoother cutting; Provided with small pressure and the sets can cut through wood, sheet metal, steel and other surfaces
high speed steel with high capability and durability in drilling holes in plastic, aluminum, copper, stainless steel and many other types of sheet metal
Mainly used for drilling thin steel within 3mm and it can be completed a one- processing according to the need to process different diameter holes

A drill can alter the use of more than a bit and do not need to replace the drill bit and positioning holes.
Weight: 0.9lb APRX.
color:gold
Material:HSS
Package included:
3x Step Drill Bit