Woodworking Square Hole Drill Bit Sharpener Mortise Chisel Bit Sharpening Tool Up to 1/2" Bit Grit #220/600-2Pack

They work great I pot it in a multi tip 1/4” screwdriver

Lo primero que hice fue afilar mis brocas de agujero cuadrado y el producto hizo muy bien su trabajo. Consta de un afilador con grano más grueso y de otro con grano más fino. Eso sí, es importante que el taladro gire a pocas revoluciones.

I haven't used them yet but they are a great idea. I don't know how I would have sharpened my chisels without it.

Has worked well to sharpen my Delta mortising attachment for my drill press. Good value.

Works wonderful. Very satisfied with the results.

One reviewer stated that the foreign made square hole mortising bits are usually either 55 or 60 degrees & the sharpening cones are the opposite degree. I can't remember now what that guy said. When I received my cones the 1st thing I did was check the angle of degree on both. The course cone is a solid 60 degrees & the fine cone is a solid 55 degrees. Go figure. So now what the hell am I supposed to do? I've been so busy I haven't had time to check the angle on my square hole bits yet. Another couple of reviewers said that the fine cone shed the diamond coating when used in a drill & suggested using them by hand & just spining them that way. If the fine cone fits I think I may be able to use it to sharpen my bits. The course cone seemed to rough to put a fine edge on the bits. I'll update after I actually put them to use.

Great price. Works great.

Most satisfied

Deben actualizar sus registros. Este producto me fue entregado antes de la fecha indicada en el pedido. Ya lo estuve utilizando y es muy útil para afilar los escoplos.

Brilliant

tres bien

Does the job at a reasonable price

The product is great for sharpening mortise chisels to a maximum size of half an inch