#1 Step Drill Bit, 1/8 - 1/2-In.The Milwaukee #1 Step Drill Bit, 1 18" 1 2", Shank Size: 1 4 Inch, Hole Diameter: 1 18 to 1 2 Inch, Coating: Black Oxide, Style: Dual Flute Step Bits, Cutter Geometry: Dual Flute, Number Of Steps: 13, Increments: 1 32 Inch, Application: Metal, Plastic, For Use With Cordless Drills In High Speed.

Hot Dipped Galvanized

Part # Color Power Level 42CW Yellow 4

Small hole in flute for easily pulling wires and cables through walls

Superior quality diamond edge rim design for up 60% smoother cuts

water-based

Skins overnight and fully cures within a week

better performance

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atro 125 & tipin 44

Not to be used where surface rust is unacceptable

Red Perma-Shield coating

perma shield non-stick coating for protection against heat