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The Incra 6-Inch Precision Marking Protractor lets you plot any angle with ease and absolute accuracy. A metal T-Bar and see-through cross hairs provide perfect alignment against the edge of your work-piece. Remove the T-Bar to work on flat surfaces or to use the 6-inch centering scale with micro-fine marking holes at every 1/32 inches. This marking protractor has micro-fine guide holes at every 45-, 30-, 22.5-, 5-, 1-, and 0.5-degree intervals. Four angle scales, including one for marking narrow stock, suit every need. It's easy on the eyes, incredibly accurate, and just plain fun to use.
From the Manufacturer
This marking protractor has micro-fine guide holes at every 45-, 30-, 22.5-, 5-, 1-, and 0.5-degree intervals to plot any angle with ease and absolute accuracy. A metal T-Bar and see-through crosshairs provide perfect alignment against the edge of your work-piece. Remove the T-Bar to work on flat surfaces or to use the 6-inch centering scale. Four angle scales, including one for marking narrow stock, suit every need. It's easy on the eyes, incredibly accurate, and just plain fun to use.
heydude
2025-07-11 10:01:07
Great protractor. Only suggestion or complaint would be to include a case, since the protractor plate itself is fairly thin steel and could easily get damaged if not stored carefully.
Mark F.
2025-04-17 10:12:43
Good quality tools are essential to precision work. I needed a protractor to layout angles for cabinets. This is accurate and easy to use. I recommend.
papatch
2025-04-15 10:15:06
I gave this five stars because the quality was apparent at first look, the thing is amazing. I do small projects in my garage using a table saw, radial arm saw and various sanders to make small boxes with multiple sides. The lids are made of wedges glued together on a backer of the same wood. In order for sixteen little pieces to fit tightly (eight sided lid) the angles must be exact. This tool enables me to achieve the accuracy I need. For those who might wonder, it does come with a pencil that appears to be .05 mm. Using this instrument I can mark any angle down to .5 degree, using a magnifier I can mark as close as .25 degrees (doubt I can cut that close). Warning: this protractor is a delicate instrument and needs to be treated as such. Don't be surprised if you notice smudges when you first begin handling the instrument, this is simply oil from your fingers being transferred to the aluminum. This bothered me a little so I rubbed it down with a bit of cooking oil and wiped it clean. I look forward to many years of using this wonderful tool.In that the protractor is only 6" wide it will only extend marks 3" out from center, with care one could probably extend these marks another three or four inches without too much loss in accuracy. I would like to see Incra offer a 12" and possibly a 18" model using slightly thicker aluminum and the same precision. I do recommend this fine tool.
Fabrike
2025-04-03 15:22:28
Very accurate piece of of tool and very functional in its design, and it came with a free 0.5 mm mechanical pencil. I have my eyes on other Incra measuring tools, which seem to offer a high degree of accuracy, yet not for the high degree of a price. My only concern is the thinness of the material. It seems to be a little thinner than I expected. It may have been so because in order to cut all those slots, it may have been necessary to use a thing gauge sheet of metal. I don't know. However, I am happy with the purchase and would recommend it to others.
Bugslinger
2025-03-11 11:05:36
I did a project a while back in which I was cutting some compound angles. I made do with the clear plastic protractor I had in the shop and it turned out fine but I was thinking there has to be something better than this. I have one good potractor type device but it's not made for what I was doing so I started looking for something better. I'm somewhat embarrased to say I was completely unfamiliar with Infra though I've been a "shop guy" for most of my 65 years. Anyway this tool popped up on Amazon. I liked what I say and read and ordered it (along with an Incra rule set). While I have not done a project in which I've had to use this protractor since I got it, I did go back and duplicate what I did on the previous project on paper and scrap wood and it is a fine tool. I was marking angles along the side of a board and the bar for want of a better word along the bottom puts the protractor right where it needs to be to measure the angles and it's really easy to line up the index marks on the protractor with the point I marked on the board. All the angles and fractions are clearly marked and the slots cut in the protractor make it easy to mark just where I want to with the included 0.5 mm mechanical pencil. Like the other Incra tools, it's made from thin stainless steel to make for more accurate marking with no parallex error. As a result you don't want to just throw this in you tool box with the hammers and pipe wrenches. It's a precision tool. I actually made a little wooden box with the protractor and other Incra tools fitted in it. The tool is US made and that's important to me.
Hgnomentat
2024-11-26 18:44:05
Nothing can do everything. This gives you good precision etc but CAN be difficult to use. Working without the T-bar/crossbar, when you have decided on a point on a line from which to draw an angle, it can be quite difficult to FIND that point by looking for it through the face of the protractor. The window is so small you can't tell what you are seeing. Obviously, if you don't care where the line or the point are, you can do it simply. Just put the device on the paper and mark the center, mark the horizontal and mark the angle. This is a fairly rare case for me. OR, i may have already laid out some lines, and I want to draw angles from them. Again, how to find the line? This is like using a high power telescope - you've got a tiny field of view and an entire sky to pick out what you want to see with such precision - so they give you a lower power one to get in the right ball park. Here, I don't see any way to do that. Perhaps a plastic insert rather than the opaque stainless steel in the center/horizontal lines area? or a few more openings? I've tried sticking a pin through it, but it has to be a small pin.Second, if you do detach the fence/aligner (red thing) the screws, washer, and nuts are really easy to lose or misplace. It would help a little if the screws and washer were one piece. I have tried inserting a high power magnet in the slot and the protractor itself does stick to it, sort of. Maybe if, by default, it were attached by a magnet, it would all be easier.Anyone have any suggestions?
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