A snip is also called a hand shear. Snip is used like a pair of scissors to cut thin soft metal sheets. Snips are used to cut sheet metal upto 20 S.W.G.
Specification of Sheet Metal Snips
Snips are specified by its overall length and the shape of the blade. (snips are available in 150 mm, 200mm, 300 and 400 mm overall length) Ex.200 mm, straight snips.
Avoid cutting hard sheet metal, if so the blade becomes blunt.
Due to wear and tear, the cutting edge of the blades becomes blunt. To resharpen the blade, the cutting angle alone should be ground to an angle of 87° and should not grind the face of the cutting side of the blade.
Different types of snips are
- Straight Snip
- Bent Snip
1. Straight Snip
The straight snips are used to cut sheet metal along straight lines and outer sides of curves
While cutting a sheet metal, blades are pressed against the sheet, which causes shearing tension from both sides and the cutting action takes place.
Cutting edge of the blade and clearance: Clearance between the blades should be free but without gap. For straight snips, cutting angle is 87°.
If the clearance is too large it cause unclean cut, chamfered and jamming of workpiece
2. Bent Snip
The bent snips are used to cut the inside curved lines and for trimming curved edges.
Specification of Bent Snips:
Bent snips are specified by their overall length. Bend snips are available in 150, 200, 300 and 400 mm length.