Curve Cutting Handsaws
Handsaw is common carpentry tool that has been in use for centuries and is still widely used as a main tool for carpentry. Using handsaw is not a tough task, what you need to have is some special skills and techniques to use the handsaw effectively. Handsaw is usually given preference over power saw as it doesn't require any electricity supply to function. In this article we will discuss the types of handsaws used to saw the wood.Before moving forward it is important to know what actually handsaw is and how it is made. A handsaw is a tool having a thin steel blade with serrated teeth along the bottom edges fixed with a plastic or wooden handle. It is these teeth which describe the working of the handsaw. Different designs of handsaws have different types of teeth to perform specific functions. In this article we are going to discuss different types of curve cutting handsaws which are used to cut the curves in the wood.
These are the three saws used for cutting curves in the wood. All the three have narrow blades. Besides these three a keyhole saw may also be used.
Bow Saws
Gentle curves are cut with bow saws. Bow saws have a flexible blade attached to the wooden frame. They have a blade tensioned by a twisted string. The blade is flexible enough to have a twist of about 360 degrees, which make it ideal for curves and cuts.
Coping Saws
Coping saws are considered as the best curve cutting saws in general. Like bow saws these saws also have the blades which can turn through 360 degrees. Coping saw resembles to a large junior hacksaw in shape. Handle is used to raise the tension of the blade. If you want to make an enclosed cut in wood, first you have to bore a hole and then thread the blade through that hole, adjust the frame afterward. For working on a curve you need to slop now and then to spin the blade. Moving the entire frame is not enough, slopping is required. Try not to twist the blade in the process.
1.Sterilize temperature ≤ 135 °C ,if the temperature is over 135 °C ,the motor will be damaged.
2.Normal bone drill can only hold drill bits less than 6mm,acetabulum reaaming drill with big torque,rpm is around 400,canulate drill is used with nail or K wire ,rpm is around 800.
3.The battery need to be get out of the power tool after surgery.Otherwise the small automatic discharge of the electric will make the life of the battery short.
4.The battery cannot be sterilized ,it is not autoclavable.
5.The cranial bur must be washed right after the surgery by purger in order to avoid the blood stick in the bur,then we should make it dry.
6.The battery space in the handpiece of the tool should not have any water,after sterilization.
7.The cranial bur blade is made of medical stainless steel,in order to avoid broken,so it is flexible and not very hard,it is easy to be attrite,we suggest each blade only use for 1 surgery.
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