• Hardened high-speed steel shaft for strength, Titanium Nitride coated for smooth cutting power
• 3-piece set replaces 28 individual drill bit sizes
• Double-flute bit design produces faster, truer cutting in even hard metals
• Beveled shanks for sure grip with any chuck

Set includes three step bits: 1/8" to 1/2" in 1/32" increments; 3/16" to 1/2" in 1/16" increments and 1/4" to 3/4" in 1/16" increments. One-year warranty and Jack's Tool Shed worry-free Satisfaction Guarantee.