Published: June 26, 2017
Bench plane and block plane blades have traditionally been beveled to 25°. The low-angle block plane has a bed angle of 12° and the blade comes honed at an angle of 25°. Standard angle block planes have the blade bedded at 20°. The bedding angle, plus the bevel angle, equal 45°, which is the same cutting angle as a bench plane and gives a very good finish on flat and difficult grain. Since the blade is used bevel up, the effective cutting angle will be 37°. The 25° blade bevel is ideal for fine trimming work on end-grain softwood and some hardwoods.
Jack planes are about 12–15 inches long, and the blade can have either a slightly curved edge for smoothing stock, or a straight edge for jointing stock. In preparing stock, the jack plane is used after the scrub plane and before the jointer plane and smoothing plane.
Published: June 25, 2017
Lawn Mower Blade Sharpening
A customer dropped off a Ninja lawn mower blade for sharpening and it definately needed sharpening. These are good blades but like all other blades the factory specs call for a cutting edge only as sharp as a butter knife. After looking at the beating this blade had taken, I decided to sharpen the blade somewhat different that the specs. Why? Well, quite simply, a butter knife is not very sharp.
I profiled a shoulder behind the cutting edge which was ground down “only as sharp as a butter knife,” and then put a super sharp edge ahead of that. What will this give my customer? Unless the mower is being used as a bush hog, my customer should get many cuts with a super sharp edge and once that edge dulls there will be a factory spec edge which again will give many cuts. I will wait until this customer has something to say or ask about the blade at which time I will give you the results of the change.
Get your grass mowing season off to the right kind of start – with sharp mower blades.
I sharpen all blades including:
- Maxpower 561713 Mower Blade Set
- USA Mower Blades
- MTD Deck Mower Blades
- Murray Riding Mower Blades
- and pretty much all others
Price is $6.00 per blade which includes removing fractured material and balancing.
Published: March 21, 2017