Tipu Bevel Gauge, NOT for knife edge
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Although it does not state so on the package, I found it to be extremely accurate. I put it up against a digital angle finder to see how accurate it was.
Stainless steel construction
This is more true of chisels and plane irons than it is of other tools. a grind on the axe head
a guess; 3/32" thick with a 2 1/4" diameter.
Selected User Reviews For Tipu Bevel Gauge, NOT for knife edge
I purchased the item so that I could use it to determine the angle at which a knife was sharpened (it was recommended as an add-on item to a knife sharpener that I bought). That isn't the case. The blade's cutting edge passes through the gauge area in the slots and into a round hole drilled at the bottom of each measuring point, which is difficult to describe.
The way I understand it, you should place the knife in the middle of the slot and try to match the bevel of the knife edge to the side, then move the gauge perpendicular to the knife and see if the other side matches up. It's not a case of simply jamming the knife into the slot to see if it fits. When the grind is only a mm or so wide, the actual knife edge bezel can be difficult to match up; you'll need to use a magnifying glass and have extremely steady hands. Because it was so difficult to use, I can't vouch for the accuracy of the angles.
Each wedge's end circle is far too large. The majority of the ground edge ends up in the circle, leaving no way to accurately gauge the angle. Finding a wedge with the bottom parallel to the other edge can be done by looking perpendicular to the gauge and lining up the top of the grind with one edge of a wedge. Except for any sighting or parallax errors, this gives you a good idea of the angle. It's better than aligning an edge with a straight object and doing the trig, but it'd be even better if you could simply put the grind into the wedge and read it.
This gauge will not measure secondary bevels on double bevel tools, such as smaller knives, but it will measure the primary bevel on double bevel tools, as well as single bevel tools. I've used it to clean lawnmower blades, axes, and other heavy chopping tools, and it works great.
The angle numbers are cleanly etched on both sides of this heavy brushed metal chunk. I'm not sure if the tool was punched or cut, but all of the edges are smooth. Unfortunately, unlike the photo above, mine had "Tipu" etched in the middle on both sides (which I did not like). The hole is plenty big enough for my pegboard hooks, but it's probably too big for a key chain. I can't think of anything I don't like about it. It'll do the job just fine.
I use the gauge to check the bevel angles of my chisels and plane irons; it works well for this and is a great value for the money; I also like that it fits easily into the pockets of my workshop apron.
I was taken aback by how heavy this item was when it arrived. It was surprisingly sturdy, and the angles appear to be accurate, so it'll be a valuable addition to my sharpening arsenal.
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