Our rankings are generated through the algorithmic analysis of thousands of customer reviews about products, brands, merchant customer service levels, popularity trends, and more. We use advanced technology, including AI, to help process and organize this information at scale, supporting our analysis with greater speed and consistency. The rankings reflect our opinion and should be a good starting point for shopping.
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10 Best hole enlarging drill bits of 2026
Save up to 10% off
Best Choice1
CO-Z9.8Exceptional
ZELCAN 10 Sizes Titanium Step Drill Bit, 1/4 to 1-3/8 Inches High Speed Steel Drill Cone Bits for Sheet Metal Hole Drilling Cutting, HSS Multi Size Hole Stepped Up Unibit for DIY Lovers Electrician
10% Off-
package dimensions:3.39 x 1.54 x 1.34 inches 5.29 ounces
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asin:B076QC5BWR
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date first available:October 24, 2017
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item model number:SDB-2017-01
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best sellers rank: 3 in Step Drill Bits
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Value for Money2
Aleric9.6Exceptional
Aleric Step Drill Bit Set - Titanium Coated, High Speed Steel Drill Cone Bits for Aluminum, Wood and Plastic Hole Drilling Cutting, Multi Size Hole Stepped Up Unibit for DIY Lovers,3pcs
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package dimensions:2.87 x 2.68 x 0.75 inches 3.84 ounces
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asin:B08Y96Z669
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date first available:March 8, 2021
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item model number:AMY-07
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best sellers rank: 10 in Step Drill Bits
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3
IRONANT9.5Excellent
IRONANT 5PCS HSS Titanium Step Drill Bit Set for Metal Unibit
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package dimensions:7.17 x 4.72 x 1.93 inches 1 Pounds
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asin:B09GXP5WSH
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date first available:September 23, 2021
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item model number:IRT5
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best sellers rank: 5 in Step Drill Bits
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4
JONMON9.4Excellent
JONMON 6 Pack Titanium Coated HSS Twist Drill Bits - 3-8mm Serrated Drilling Grooving Side Cutting Drill Bit, Woodworking Hole Enlarging Tools for Wood, Plastic, Aluminum, Thin Metal
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5
AIMLENTOOL9.3Excellent
AIMLENTOOL 3Pcs 1/4" Hex Shank HSS Step Drill Bit Set
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package dimensions:N/A
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asin:B0CDW2J19X
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date first available:August 7, 2023
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item model number:N/A
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best sellers rank:N/A
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6
NEIKO9.2Excellent
NEIKO 10182A Titanium Step Drill Bit, High-Speed Alloy-Steel Bit, Hole Expander for Wood and Metal, 13 Step Sizes from 1/8 Inch to 1/2 Inch
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7
LepoHome9.1Excellent
HSS Step Drill Bit Set - 3PCS 1/4" Hex Shank Titanium Coated High Speed Steel Hole Drill Cone Bits Stepped Up Unibit for Sheet Metal Hole Drilling Cutting Hole (1/8 Inch - 3/4 Inch)
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8
COMOWARE9.0Excellent
COMOWARE Step Drill Bit Set 5-Piece Titanium-Coated with Automatic Center Punch - Short Length, Double Cutting Blades, High-Speed Steel - Covering 50 Sizes, Complete with Aluminum Case
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package dimensions:6.34 x 6.02 x 1.81 inches 1.23 Pounds
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asin:B07DB6CG2Z
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date first available:May 26, 2018
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item model number:TGStep-5
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best sellers rank: 4 in Step Drill Bits
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9
JONMON8.9Very Good
JONMON 8 Pack Titanium Coated HSS Twist Drill Bits - 3-10mm Serrated Drilling Grooving Side Cutting Drill Bit, Woodworking Hole Enlarging Tools for Wood, Plastic, Aluminum, Thin Metal
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10
Lawei8.8Very Good
Lawei 3PCS Diamond Beveling Chamfer Bits Set, Tile Cone Grinder Bit with 5/8-11 Thread Adapter, 1In Diamond Drill Bits for Hole Enlarging Trimming Grinding in Tile, Marble, Granite, Porcelain, Glass
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