Vastar Titanium Step Drill Cone Drill Bits High Speed Steel 10 Steps

Vastar Titanium Step Drill Cone Drill Bits High Speed Steel 10 Steps

• The Vastar step drill bit with 10 step sizes: 1/4", 3/8", 1/2", 5/8", 3/4", 7/8", 1", 1-1/8", 1-1/4", 1-3/8"
• 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
• Mainly used for drilling thin steel within 3mm and it can be completed a one-time processing according to the need to process different diameter holes