These screws are for use with the jig described below
Pocket Hole Jig kit Produced by UJK
Pocket hole joinery is all about making strong, hidden joints that are fast and easy to produce.
The UJK Pocket Hole Jig complete kit can be bench mounted or portable, containing all you need. It is suitable for many applications from furniture making to kitchen fitting, giving very strong frames and carcases.
A strong, hidden joint is produced using a jig and drilling a hole at an angle into one workpiece, then joining it to a second workpiece with a self-tapping screw. Speed comes from the fact that the self-tapping screw eliminates the need to pre-drill the mating workpiece. This avoids many alignment problems caused by having to lay out and drill for aligning fasteners as with dowel, biscuit and mortice and tenon joints. Strength comes from the self-tapping screw as an internal clamp, eliminating clamping the joint as the glue dries. Save time and the frustration of clamping, as well as the problems associated with pulling the assembly out of square with clamping pressure.
Use this jig two ways: as bench mounted or fit the portable plate and use with the clamp so that you take the jig to the work. There is also a very useful extraction outlet so that you can attach a vacuum extractor to keep your work area clear.
This well made jig has all metal parts for added strength and can easily be mounted on a bench. Use for a wide range of material thickness 12-36mm, clear metric scales allow for ease of use.
Supplied as a kit with extraction outlet, portable plate, jig clamp, 1,000 screws in own assorter storage box, high quality M2 specially designed European made spiral drill bit and collar.
Joinery made fast, clean and easy
With pocket hole joinery you can make strong, hidden joints that are suitable for many applications and situations.
The UJK Technology Pocket Hole Jig opens up a host of possiblities, helping swiftly make frames for furniture, kitchen fitting and more; the list is almost endless. Whether you are a complete beginner or a seasoned professional, this jig will make a great addition to your tool kit and will give years of reliable usage.

What makes pocket hole joinery so good?
Speed
Self tapping screws eliminate the need to pre-drill the mating workpiece, this also avoids alignment problems.
Strength
The screw acts as an internal clamp and is stronger than a biscuit, dowel or tenon. Constant clamping force combined with today's glue technology makes for a very strong wood-to-wood bond