SD-3 Flat Bottom Counterbores
SD-3 Flat Bottom Counterbores are used to drill the pilot hole or clearance hole and counterbore a flat bottomed hole in one step. Great for lag screws, lag bolts, washer head screws, T-nuts & more.
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33164 – Stop Collar for 3/4″ & 1″ Flat Bottom Counterbores
$ 19.99 Add to cart -
39112 – 3/16″ Replacement Twist Drill for Flat-Bottom Counterbores-TiN Coated HSS
$ 8.39 Add to cart
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