davyfireball
Member
why do you only sharpen a putty knife - a hoe -chisels- and lawn mower blades on 1 side . I just want to know more than . Because my dad told me so .
Kinda why chisels are only sharpened on one side.Use one side of your wood chips then turn it over and try the other side down. You'll see the reason right away. One side diggs in and the other side kinda glanced off the work.
Dave
If a putty knife was sharpened on both sides of the edge, the handle would need to be tipped way up to get a clean edge contact with the work. The purpose is to have the sharp edge scraping the surface of glass, or a block/head flatness. if sharp on one side, that side can allow the handle to be close to parallel with the plane of the casting. This increases the lifting action and also keeps it from "stubbing" in as often. Jimwhy do you only sharpen a putty knife - a hoe -chisels- and lawn mower blades on 1 side . I just want to know more than . Because my dad told me so .
#1 Carving gouges (flat) come in both single and double bevel. The single bevel gives you two different ways (angles) to attack the wood. A double bevel allows you to rock the tools back and forth to control the depth of cut better. I have some of both.why do you only sharpen a putty knife - a hoe -chisels- and lawn mower blades on 1 side . I just want to know more than . Because my dad told me so .
On a chisel I think it depends on what type you are using. I have them with only 1 side sharp and others that the angle is both sides.why do you only sharpen a putty knife - a hoe -chisels- and lawn mower blades on 1 side . I just want to know more than . Because my dad told me so .
Correct. Wood chisels are one sided cold chisels are two sided. JimOn a chisel I think it depends on what type you are using. I have them with only 1 side sharp and others that the angle is both sides.
Best example is a wood plane, chips will fly,why do you only sharpen a putty knife - a hoe -chisels- and lawn mower blades on 1 side . I just want to know more than . Because my dad told me so .
I've never sharpened a putty knife. Never saw the need.
Here in NA, we have two different tools we call putty knives. Most have flexible blades and are intended for applying spackle, etc. These are seldom sharpened. But there are also stiff-bladed putty knives that are mainly used for scraping; stiff-bladed putty knives need to be sharpened.I've never sharpened a putty knife. Never saw the need.
I believe the edge is much stronger on a lawn mower blade if only one side is sharpened. I always take the burr of on the straight side as well. as someone else said if you sharpen both sides it is a dull edge and the grass would bend when hit instead of cut.why do you only sharpen a putty knife - a hoe -chisels- and lawn mower blades on 1 side . I just want to know more than . Because my dad told me so .
If you ever watched "The Wizard of Oz", you'd know where Oz is.Here in NA, we have two different tools we call putty knives. Most have flexible blades and are intended for applying spackle, etc. These are seldom sharpened. But there are also stiff-bladed putty knives that are mainly used for scraping; stiff-bladed putty knives need to be sharpened.
Wrong, wood chisels are beveled one side, but you need to sharpen both sides, same with a hand plane. Cold chisels are beveled and sharpened both sides. If you have a wood chisel that has the bevel side sharpened, but the back side gouged and pitted, it will not cut well at all.Correct. Wood chisels are one sided cold chisels are two sided. Jim
And few know how to sharpen a cold chisel also. It’s the end of the chisel that gets sharpened to the correct angle. 60 degrees. I remember that being a question on the tool section exam years ago. Even how many strokes per minute when using a hack saw. More lost info no one cares about due to fancy tools nowadays.Correct. Wood chisels are one sided cold chisels are two sided. Jim
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