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Unibit step drills from Irwin are the industry standard. Their single flute design results in a much more accurate hole than double flute bits. The SpeedPoint gets the hole started fast! Ideal for drilling holes in thin materials such as mild steel, copper, brass, aluminum, plexiglass, wood and laminates. Models designated with a T offer a TiN (Titanium Nitride) coating which hold their cutting edge up to six times longer!
Titanium Fractional Hole Enlarging D6724
Sale price
$14.50
Regular price $59.88
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