Adjustable Drilling Guide Measurement Markings Hole Drilling Jig Knurled Knobs

Product Type: This black metal woodworking tool is an accurate positioning drilling guide designed for furniture assembly and board drilling tasks, giving you a stable setup for repeatable hole placement.

Function: As an adjustable drilling guide, it helps position and drill holes accurately in wooden boards, making it easier to keep locations aligned during cabinet, shelf, or joinery work.

Adjustment Range: The wood drill jig offers 13-81 mm horizontal adjustment and 12-27 mm vertical adjustment, with engraved measurement measurement markings on the top and side for clearer setup and alignment.

Construction: This hole drilling jig features a rectangular frame with a long uncovered center, four gold-toned knurled adjustment knobs, and stainless steel drill bushings with a cylindrical knurled outer surface and threaded base.

Drill Bushing Sizes: The visible bushing sizes shown are 6 mm, 8 mm, 10 mm, and 12 mm, supporting different drilling needs while the clamping and positioning layout helps keep work more consistent.