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مميزات خاصة
➤ 4PCS -- The drill bit set include 4pcs HSS constructed drill bits for drilling holes with screw sizes 2.38mm, 2.78mm, 3.175mm, 3.56mm.
➤ PREMIUM MATERIAL -- This drill bit set are made of high quality HSS 4241 material, very durable and can serve you for a long time.
➤ CHANGE CONVENIENTLY -- Adjustable counter sleeve depth with hex wrench. 6.35mm standard hex shank is quick change compatible.
➤ EASY TO OPERATE -- Drilling length can be adjusted for various length screws simply by loosening and tightening the setscrew.
➤ WIDE RANGE OF USAGE -- Suitable for drilling workpiece with the hardness below 25HRC, such as for carbon steel, sheet iron.plate, insulating plate, PVC plate, wood board, etc. Use on a drill machine with chuck or connector.