The Wiss® M1R MetalMaster® Aviation Snip is a high-performance cutting tool designed for demanding professionals in HVAC, construction, metalworking, and general trades. With its compound action mechanism, precision-ground molybdenum blades, and ergonomic design, this snip delivers superior cutting power, control, and comfort—cutting through tough materials with ease and accuracy.

Whether you're making tight left-hand curves or straight cuts, the M1R snip is built to last, tested to perform over 500,000 cuts and capable of slicing through 18-gauge low carbon rolled steel. Proudly made in the USA, it’s a trusted tool for tradespeople who value reliability and long-term performance.

Key Features:

• Left/Straight Cutting Action
  Designed to cut left from tight curves to straight lines, ideal for ductwork, sheet metal, and other precision applications.

• Precision-Cast Molybdenum Blades
  CNC-ground serrations ensure uniform blade edges for cleaner cuts, improved material control, and reduced burrs.

• Compound Action Mechanism
  Multiplies hand force for effortless cutting, reducing fatigue and increasing efficiency.

• Extended Blade Life
  Engineered to cut over 8 miles of steel, with a free-float pivot bolt design that enhances durability and extends tool life.

• Ergonomic Non-Slip Handles
  Single-material grips offer maximum control, easy cleaning, and a built-in hang hole for convenient storage.

• Spring-Loaded Return
  Enables fast, smooth feed and reduces hand strain during repetitive cuts.

• Single-Handed Latch Operation
  Easy to use for both left- and right-handed users, improving workflow and safety.

• Superior Blade Bypass Control
  Prevents tearing at the end of cuts and minimizes folding or distortion of material.

• Quick Identification
  Bright red handles make it easy to identify the left-cut snip in your toolbox or on the jobsite.

Specifications:

• Model: M1R
• Overall Length: 9.75 in
• Blade Length: 1.375 in
• Weight: ~1.0 lb
• Cutting Capacity: Up to 18-gauge low carbon steel
• Blade Material: Precision-cast molybdenum
• Handle Material: Single-material non-slip grip
• Color: Red
• Packaging: Carded
• Warranty: Full Lifetime Warranty
• Made in: USA
• UPC: 037103580122
• Prop 65 Warning: Contains chemicals known to cause cancer and reproductive harm (California residents)

Benefits:

• ✅ Cleaner, more precise cuts with CNC-ground serrated blades
• ✅ Longer tool life—tested for over 500,000 cuts
• ✅ Reduced cutting effort with compound action design
• ✅ Comfortable and safe for extended use
• ✅ Ideal for HVAC, roofing, sheet metal, and general construction