Mastercool 70088 tube piercing plier – for 1/4" copper tubing

This compact tool makes accessing sealed copper lines quick and simple. The Mastercool 70088 is ideal for HVAC techs who need reliable access to refrigerant lines without removing fittings or cutting the pipe.

What you'll find on this page

• ✅ Quick piercing access
• ✅ Strong metal design
• ✅ Designed for 1/4" tubing
• ✅ Perfect for HVAC diagnostics

Quick piercing access

No need to cut or flare—just clamp and pierce. This tool offers fast and efficient access to sealed systems for pressure checks or refrigerant charging.

• ✅ Easily pierces 1/4" copper lines
• ✅ Great for tapping sealed systems during diagnostics
• ✅ Saves time in emergency repairs or field servicing

Strong metal design

The plier’s all-metal construction ensures long-term use, even in rough worksite conditions. No flimsy plastic here.

• ✅ Durable steel handle and jaws
• ✅ Compact and tough for tool bags and service kits
• ✅ Designed to hold steady under pressure

Designed for 1/4" tubing

This model is made specifically for 1/4” outer diameter copper tubing—common across HVAC and refrigeration systems.

• ✅ Precise fit reduces risk of slippage or leaks
• ✅ Keeps system integrity intact during servicing
• ✅ Ideal for pressure or refrigerant tap applications

Perfect for HVAC diagnostics

Whether you're checking pressures or temporarily accessing a sealed system, this tool is a reliable sidekick for the job.

• ✅ Handy for emergency service calls
• ✅ A staple for mobile HVAC tech kits
• ✅ Trusted by Australian tradies for years