Sommerfeld's Easy Bore Hinge Boring Jig

WOOD magazine rating
Average reader rating
4.0
out of 5
Brand:
Sommerfeld Tools
Model:
SHB
Price:
$180

Description

Our hand-clamped boring jig drills a 35mm hole and two aligning 8mm holes at the same setting, which allows you to accurately install your hinges with ease and speed. No screwdriver is needed to install, just a hammer to lightly tap the hinges in place. The hinges have special plastic inserts around screws which stay imbedded in wood; hinge can then be unscrewed if needed while finishing etc. The jig has adjustable stops which allow for different overlays. We use setting number 2 for 1/2" overlay, number 3 for 3/8" overlay. The cast aluminum alloy frame also incorporates a dept-adjustable carbide-tipped 35mm bit with spurs for clean holes in solid wood, veneers or melamine. The Easty Bore is a strong, versatile unit for shops of all sizes!

WOOD magazine review

Drill spot-on cup hinge holes

Review Summary

The Easy-Bore Hinge-Boring Jig takes all the guesswork out of the aligning and drilling the holes for European-style cup hinges. I simply selected the adjustable spacing bumpers inside the jig for the correct offset from the stile edge, placed the jig onto the door, and locked it in place. Each of the hex-head bolts on the jig turns a drill bit inside: the center one bores the 35mm cup hole, and the others the 8mm holes for plastic screw bushings.
Install the included socket driver in a drill and bore all three holes. Or, to drill holes for standard screws instead of bushings, simply tap the outer screw bits to indent the wood, remove the jig, and drill with the appropriate bit. It's remarkably simple and accurate—Tested by Matt Seiler, WOOD Magazine

Detailed Ratings

4.8
out of 5

Performance

5

Features

5

Ease of Use

5

Value

4

Reader Reviews

Review based on two years use in one man cabinet shop !

Review Summary

I purchased this jig in September of 2013, to speed up the process of drilling the 35MM holes for European concealed hinges, over the Rockler jig I have been using.This jig seems to be made pretty solidly. It's mostly metal. The only plastic parts are the cam levers and the small cam blocks that are used to determine the 35 MM hole distance from the door edge,so not sure how well that will stand up over time since after two kitchens it's now showing some wear on that plastic cam.
The jig I received did manage to cut the holes in the door accurately, but not smoothly,as there is a little wobble and shaking going on, which doesn't affect the accuracy. The adjustable set back cams used are the same size and markings as the ones on the Blum jig although are not accurate as to Millimeters, as they are on the Blum. But I found by putting strips of tape on them I could adjust the set back to any MM distance that I need. I can't speak to how, or even if, the drill bits can be replaced, but assume that by unscrewing them from the top they could be. It is fairly easy to adjust without any other tools or wrenches and clamps snugly to the door without movement, although I have noticed that the the adjustment knobs loosen with use, so you have to periodically check to be sure they are tight. A lot of wood shavings are produced by this jig and they sometimes have a tendency to clog up inside the unit, which requires them to be dug or blown out. I solved this problem by drilling a hole large enough to fit a small vacuum hose to the back of the unit. That solved the problem and pretty much gets 100% of the shavings. This jig is definitely a time saver and a good value even with the few quality control flaws, as it's priced at almost half of what the Blum Co.is asking for their original jig, of which this is an obvious copy. If your a one man cabinet shop like mine and your not doing a lot of doors then this would be a good jig to have, and a step up from the Rockler brand jig !

Detailed Ratings

4.0
out of 5

Performance

4

Features

4

Ease of Use

4

Value

4

Tip of the Day

Slash Shelf-Finishing Time with Just a Few Screws

I recently built a bookcase and wanted to spray lacquer on both sides of the shelves. I... read more