8 Pack Woodworking Countersink Drill Bits Set 3in1, Heavy Duty 6542 Pilot Drill Bits Depth Adjustable, 82-Degree Chamfer, 6mm Hex Shank, for

8 Pack Woodworking Countersink Drill Bits Set 3in1, Heavy Duty 6542 Pilot Drill Bits Depth Adjustable, 82-Degree Chamfer, 6mm Hex Shank, for8 pack Woodworking Countersink Counterbore Drill Bits Set 3in1 They are to save you time and money. Choose a proper sized bit, you can drill, countersink and counterbore in one step, and get clean countersinks and counterbores for #4 #6 #8 #10 #12 #14 Screws in quick fashion. Built with 6mm hex shanks for quick in and out change bit connection, compatible with any hex chuck drill or driver. The pilot drill bit working length is adjustable, so you can

8-pack Woodworking Countersink Counterbore Drill Bits Set 3in1
They are to save you time and money. Choose a proper sized bit, you can drill, countersink and counterbore in one step, and get clean countersinks and counterbores for #4 #6 #8 #10 #12 #14 Screws in quick fashion.
Built with 6mm hex shanks for quick in-and-out change bit connection, compatible with any hex-chuck drill or driver.
The pilot drill bit working length is adjustable, so you can have precise depth control for screws.
Use a hex wrench to change depth and tight the drill bit in each countersink
There are 3 sharp edges in each countersink in 82-degree chamfer for clean holes to set screws flush with or below the surface of a material
Specifications:
Material: High-speed steel
Size：2mm, 2.5mm, 2.8mm, 3.2mm(x2), 3.5mm(x2), 4mm
For #4 #6 #8 #10 #12 #14 Screws
Extra pilot bits included