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Lenox - Step Drill Bit: 1/2 to 1″ Dia, 3/8″ Shank Dia, High Speed Steel, 9 Hole Sizes - 63361711 - MSC Industrial Supply
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Titanium Nitride Coated High Speed Steel Step Drill Bits - Set of 2 - Ideal Supply Inc (dba Ideal Blasting Supply)
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Amazon.com: NEIKO 10189A Titanium Step Drill Bit, High-Speed Alloy Steel Bit, Hole Expander for Wood and Metal, 12 Step Sizes from 7/16 Inches to 1 1/8 Inches : Industrial & Scientific
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Diablo DSD0875S12 Step Drill Bit, 3/8 to 7/8 in Dia, 2-3/4 in OAL, Dual Flute, 1/4 in Dia Shank, Hex Shank - A-OK Building Supply
![Spyder Mach-Blue 2-Piece 1/4-in Step Drill Bit Set (1/8-in to 7/8-in) in the Step Drill Bits department at Lowes.com Spyder Mach-Blue 2-Piece 1/4-in Step Drill Bit Set (1/8-in to 7/8-in) in the Step Drill Bits department at Lowes.com](https://mobileimages.lowes.com/productimages/ee6d1911-6740-435e-bc7e-bbf8d1aaef5f/48381130.jpg?size=pdhism)
Spyder Mach-Blue 2-Piece 1/4-in Step Drill Bit Set (1/8-in to 7/8-in) in the Step Drill Bits department at Lowes.com
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Amazon.com: IRWIN Step Drill Bit, 1/8-Inch to 1/2-Inch Step, 1/4-Inch Shank (10231) Silver|Silver metallic : Industrial & Scientific
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Made in USA - Subland Drill Bit: for 5/16″ Screws, 0.3438″ Drill, 1/2″ Step, 6″ OAL - 01603208 - MSC Industrial Supply
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Amazon.com: MAGBIT 851.1500 MAG851 1/4-Inch to 1-1/2-Inch Max Diameter High Speed Step Drill Bit, 11 Steps : Industrial & Scientific
![Milwaukee Shockwave Impact Duty 1/8 In. - 1/2 In. #1 Step Drill Bit, 13 Steps - Power Townsend Company Milwaukee Shockwave Impact Duty 1/8 In. - 1/2 In. #1 Step Drill Bit, 13 Steps - Power Townsend Company](https://1470-cdn.dib-moce-cdn.info/Data/ItemImage-374581-q5vw4m-5tk1nc-cqe9p4.jpg?AutoCrop=1&CropHeight=1440&CropWidth=1440&Height=1440&Padding=1&Quality=50&Resize=Auto&Revision=5ZDV&Timestamp=DtHvFG&Width=1440)