Irwin 15101 Unibit 1T 13 Hole 1/8"-1/2" Titanium Nitride Step Drill.
UNIBIT® step drills are in a class unto themselves. UNIBIT step drills include as many as 13 different hole sizes in a single bit, eliminating the need for an entire tool box full of specific sized drill bits. And its built-in differences result in a tool that cuts faster and cleaner and gives a true, round hole every time.
Each UNIBIT step drill is constructed of industrial-grade high speed Molybdenum steel, heat-treated and tempered to assure long life.
The bright-gold finish of titanium-nitride coated (TiN) UNIBIT® step drills not only enhances the appearance of the tool, but enhances its performance. With the addition of the titanium-nitride coating, the tool takes on a 33 percent increase in surface hardness making it ideal for heavy-duty applications. This results in a step drill that lasts up to five times longer than an uncoated bit.
The titanium-nitride surface is inert to steel, which prevents steel from sticking to it, and makes it ideal for a variety of industrial uses. The coating gives a low coefficient of friction, which allows the tool to run cooler.
Style: Multiple Hole Sizes;
Material: Titanium Nitride Coated;
# of Holes: 13;
Hole Sizes: 1/8" - 1/2";
Shank Diameter: 1/4";
Maximum Material Thickness: 1/8".
Ships via UPS.