Combination Drill & Taps
Different SizesOur Countersink drill bit sets include 10 kinds of sizes for you to choose:2.8 x 8mm, 2.8 x 10mm, 3 x 8mm, 3 x 10mm, 3.2 x 8mm, 3.2 x 10mm, 3.5 x 8mm, 3.5 x 10mm, 4 x 8mm, 4 x 10mm, very suitable for using to multi size wood hole drilling.