UJK Mk II Concealed Hole Jig

The UJK Mk II Concealed Hole Jig is the ideal solution for creating strong, discreet joints quickly and accurately. Now featuring redesigned drill sleeves, it is fully compatible with the advanced UJK Complete Concealed Hole Drill Kit, which offers interchangeable pilot bits for unmatched versatility. This allows for quick bit changes or, if one breaks, simple replacement without the need to purchase a new drill. The improved sleeves are made from aluminum bronze alloy, an exceptionally wear- and corrosion-resistant material with durability comparable to medium carbon steel.

Made entirely of metal for durability and easy bench mounting, it accurately handles wood from 13 to 36 mm thick thanks to its clear metric scales. Whether building frames or structures, this jig provides clean, aligned joints without the need for clamps or pre-drilling.

• Improved Mk II version with redesigned drill sleeves.

• Bushings made of durable, corrosion-resistant aluminum bronze alloy.

• Includes the complete UJK concealed hole kit and a 150 mm T20 Torx screwdriver bit.

• Compatible with material thicknesses from 13 to 36 mm.

• Self-tapping screws eliminate the need for pre-drilling and act as internal clamps.

• All-metal construction for increased strength and durability.

• Bench-mountable and features clear metric scales.