Hand Tools β FAQ
What gauge steel can plumber's tin snips actually cut?
Most quality aviation snips cut 18-22 gauge steel reliably. The Klein 1302S handles 18-gauge consistently, while budget models may struggle beyond 20-gauge. For thicker materials, consider metal shears or a nibbler.
Should plumbers buy straight-cut or offset aviation snips?
Start with a premium straight-cut snip like the Klein 1302S for 90% of plumbing work. Add left and right offset snips later for curved cuts in ductwork and tight spaces. The offset design keeps hands above the material.
How do I sharpen tin snips when they get dull?
Use a fine diamond file matching the original 5-degree bevel angle. File only the outside edge of each blade, maintaining the factory angle. Professional sharpening costs $10-15 and extends tool life by years.
Why do my tin snips leave burrs on copper?
Dull blades or improper cutting angle cause burrs. Ensure you're cutting at 90 degrees to the material. The Klein 1302S's serrated blades minimize burrs by gripping metal during cutting, preventing blade slide.
Can I use tin snips to cut stainless steel?
Not recommended. Stainless steel work-hardens and will destroy standard tin snip edges. Use dedicated stainless steel shears or a plasma cutter. Most plumber's snips are optimized for softer metals like copper and aluminum.
What's the difference between aviation snips and tin snips?
Aviation snips have compound leverage and color-coded handles (red=left, green=right, yellow=straight). Traditional tin snips are simpler, single-pivot tools. Aviation snips cut thicker material with less effort and greater precision.
