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Updated November 2021
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BestReviews spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We only make money if you purchase a product through our links, and all opinions about the products are our own. Read more  
BestReviews spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We buy all products with our own funds, and we never accept free products from manufacturers.Read more 
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We recommend these products based on an intensive research process that's designed to cut through the noise and find the top products in this space. Guided by experts, we spend hours looking into the factors that matter, to bring you these selections.

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A steel counterbore set can provide the range of sizes you need for drilling pilot holes properly. A counterbore is a pilot hole with a flat-bottomed opening to accommodate for screw heads. The number of pieces in a counterbore set varies. If you know you’ll need a range of sizes, you may want to opt for a set with as many as 22 pieces. Some sets may include interchangeable pilots, which offer more options and versatility. Organized storage in a wooden case can make for easy use and portability. If you need to work with materials tougher than wood, ensure that the bits in the set you purchase are durable and up for the task.

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