
A good Bi-metal Hole Saw will cuts faster and smoother and with reduced vibration due to the variable pitched teeth, hole saws have two different types of steel joined together to form the edge of the cutting end of the Hole Saw. High speed steel is joined to a soft spring steel to form a durable edge that will cut a multitude of materials and help provide long life. High speed steel is used on the outer edge due to its wear resistance properties and forms the cutting edge of the teeth. Soft, spring steel creates a flexible backing material that allows the hole saw to absorb impacts of the job of drilling holes in difficult-to-cut materials.
Carbon Steel Hole Saw,New Hole Saw Kit,Steel Hole Saw Set,Carbon Steel Hole Saw Set
Behappy Crafts (suzhou)Co.,Ltd , https://www.behappyindustry.com