Mastercool 70031 — Ratchet Tube Cutter 5/16" to 1 1/8" O.D.

Professional ratchet-action tube cutter designed for confined spaces where full swing clearance is unavailable. The innovative ratchet mechanism allows cutting all the way around tubing with minimal movement, making it ideal for tight installations and awkward access situations. Cuts copper, aluminium, and brass tubing from 5/16" to 1 1/8" O.D. with precision and ease.

Key Features:

• Ratchet Action – Cuts tubing in confined spaces without full swing clearance
• 5/16" to 1 1/8" O.D. Capacity – Handles medium to large diameter tubing
• Precision Cutting – Clean, square cuts without deformation
• Hardened Steel Cutting Wheel – Long-lasting cutting performance
• Ergonomic Design – Comfortable grip reduces hand fatigue
• Durable Construction – Built to Mastercool professional standards
• Compact Profile – Access tight spaces behind walls, under floors, in ceiling voids

Specifications:

• Model: 70031
• Cutting Capacity: 5/16" to 1 1/8" O.D. (7.9mm to 28.6mm)
• Cutting Action: Ratchet mechanism
• Compatible Materials: Copper, aluminium, brass tubing
• Cutting Wheel: Hardened steel (replaceable)
• Application: HVAC/R, plumbing, refrigeration
• SKU: 70031
• HS Code: 82055980

Ratchet Action Advantage:

When you don't have swing room, ratchet action allows cutting all the way around the tubing easily. Traditional tube cutters require full 360° clearance to rotate around the pipe. The 70031's ratchet mechanism enables cutting in tight quarters by using short, controlled strokes – perfect for installations behind radiators, in confined plant rooms, or anywhere space is limited.

Applications:

• HVAC/R refrigerant line installation in tight spaces
• Plumbing repairs behind walls and under floors
• Mini-split air conditioning installations
• Confined space copper pipe cutting
• Retrofit and renovation work with limited access
• Commercial refrigeration pipe work
• Boiler and heating system installations

Mastercool Ratchet Tube Cutter Range:

• 70030 – 1/4" to 7/8" O.D. (smaller diameter tubing)
• 70031 – 5/16" to 1 1/8" O.D. (this model – medium to large diameter)

Why Choose Ratchet Action?

• Confined Spaces – Work where traditional cutters can't rotate
• Faster Installation – No need to reposition or remove obstacles
• Reduced Fatigue – Ratchet mechanism requires less effort than full rotation
• Professional Results – Clean, square cuts every time
• Versatile – Works in both open and confined spaces

Operating Instructions:

Position the cutter around the tubing and tighten the knob until the cutting wheel contacts the pipe surface. Use the ratchet handle to make short cutting strokes around the tubing. After each stroke, the ratchet mechanism resets for the next cut. Gradually tighten the knob after every few strokes until the cut is complete. The ratchet action eliminates the need for full 360° clearance.

Maintenance:

Keep the cutting wheel clean and free from debris. Replace the cutting wheel when cuts become rough or require excessive force. Lubricate the ratchet mechanism periodically for smooth operation. Store in a dry location to prevent corrosion.

Professional ratchet tube cutter for confined space installations. Cuts 5/16" to 1 1/8" O.D. copper, aluminium, and brass tubing where swing clearance is limited.