Drill Size
Overall Length
Maximum Material Thickness
Material
Finish
Application
Shank Size
Type
Style
Manufacturer
Special Interest
Step Drills
Step drills are capable of making various sizes of counterbore or countersink holes.
(17 items in Step Drills) 
Fastenal Part No. (SKU) 99414628
1/2" Unibit® #10 HSS Single Hole Step Drill
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$24.44 / each
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Fastenal Part No. (SKU) 03854810104
#4 UNIBIT Step Drill - 3/16"-7/8" - 12 Hole Sizes
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$69.31 / each
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Fastenal Part No. (SKU) 0227369
#4 UNIBIT Cobalt Step Drill - 3/16"-7/8" - 12 Hole Sizes
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$87.45 / each
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Fastenal Part No. (SKU) 03854810101
#1 UNIBIT Step Drill - 1/8"-1/2" - 13 Hole Sizes
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$25.70 / each
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Fastenal Part No. (SKU) 0227368
#3 UNIBIT Cobalt Step Drill - 1/4"-3/4" - 9 Hole Sizes
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$67.37 / each
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Fastenal Part No. (SKU) 03854810103
#3 UNIBIT Step Drill - 1/4"-3/4" - 9 Hole Sizes
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$45.97 / each
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Fastenal Part No. (SKU) 03854810102
#2 UNIBIT Step Drill - 3/16"-1/2" - 6 Hole Sizes
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$25.09 / each
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Fastenal Part No. (SKU) 03854815101
UNIBIT™ 1/8" - 1/2" 13-Hole TiN Step Drill Bit
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$37.20 / each
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Fastenal Part No. (SKU) 0227367
#2 UNIBIT Cobalt Step Drill - 3/16"-1/2" - 6 Hole Sizes
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$40.66 / each
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Fastenal Part No. (SKU) 0249695
#4 UNIBIT Titanium Nitride (TiN) Step Drill - 3/16"-7/8" - 12 Hole Sizes
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$76.84 / each
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Fastenal Part No. (SKU) 0227371
#20 UNIBIT Step Drill - 9/16" to 1" - 8 Hole Sizes - Hole Enlarging
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$61.71 / each
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Fastenal Part No. (SKU) 0249693
#2 UNIBIT Titanium Nitride (TiN) Step Drill - 3/16"-1/2" - 6 Hole Sizes
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$36.13 / each
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