Reliable Supplier Tile Drill Bit - Spiral Flute Step Drill, 7/8 and 1-1/8 – Mingtaishun

Product Overview
Step Drills are wonderful tools for making a small hole bigger. Unlike using a huge drill bit, step drills don’t require nearly as much torque or cutting pressure as the steps mean you aren’t trying to cut one huge chip. This particular step drill does have a standard twist drill point so you can use this to start holes as well.
Drill Step sizes

1/4″ Initial starter drill
8 small steps
7/8″ large step
4 small steps
1 1/8″ Large step and max size

Works well for drilling in:
Metal
Stainless
Cu, Ni, Ms, Zn, Al
PVC
Wood, too
Drill Coating

TiN, Titanium Nitride
Shank

3/8″ diameter with 3 ground flats

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