In one step you can drill, countersink, and counterbore the perfect sized hole for 2,4mm; 2,8mm; 3,2mm i 3,6mm screws. Countersink to drive the head of the screw flush with or slightly below the surface. The drill bits are adjustable for different length screws.

CounterBit Set Features

• Four-piece set includes 2,4mm; 2,8mm; 3,2mm and 3,6 mm drills
• Specially designed steel counter sleeve countersinks or counterbores pilot hole
• Adjustable counter sleeve depth with Allen wrench
• Standard 1/4″ hex shank is quick change compatible
• Tin coated brad-point pilot drill bits (#6 bit is not brad point)

The movie below presents the product: