EVOLUTION 1/4" - 1-3/8" Straight Flute Step Drill

Evolution SKU: SD-11
EVOLUTION 1/4" - 1-3/8" Straight Flute Step Drill

EVOLUTION 1/4" - 1-3/8" Straight Flute Step Drill

Evolution SKU: SD-11
Model Number: EVOSD11
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Regular Price $59.99
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SD-11: (11 Hole Sizes) Two Flutes 3/8" Shank
1/4", 25/64", 35/64", 11/16", 13/16", 7/8", 1", 1-1/8", 1-7/32", 1-1/4", 1-3/8"

Evolution Premium Step Drills are made from the same high-quality M2AL as Cyclone Premium Annular Cutters. These tools are heat treated to 68RC, giving them more durability during tough applications.

Evolution Premium Step Drills are used to produce a range of hole sizes in steel up to 1/8" thick using only one tool. The twin flute design allows for a smoother cutting action with no pre-drilling necessary. Evolution Premium Step Drills have 3 chucking flats on the driving shank to ensure no slipping in the chuck.

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