DearChan Tubing Deburring & Rimming Tool LTTR1 — 3/16"-1/2", 3 Cutting Edges, Corrosion-Resistant

The DearChan LTTR1 is a compact rimming and deburring tool designed to cleanly prepare 3/16"–1/2" (4–14 mm) tubing ends for flares and fittings without leaving metal shards.

Whether you work on brake, fuel, transmission, or coolant lines, the LTTR1 provides a fast, reliable way to remove burrs and square tubing ends prior to flaring or joining. Built from corrosion-resistant metal with three cutting edges and an anti-slip handle, this tool suits a range of materials including stainless steel, mild steel, copper, aluminum, and PVC. It’s focused on safe, repeatable prep work that reduces the risk of leaks and contamination in fluid systems.

How does the LTTR1 make line preparation faster and more reliable?

The LTTR1 streamlines prep by combining a sturdy body with three precisely angled cutting edges that trim burrs and shape tube ends in a single pass. Its ergonomic handle and secure grip let you hold the tool steady, producing uniform results across multiple fittings.

• Three cutting edges for quick, consistent deburring
• Fits tubing from 3/16" (4 mm) to 1/2" (14 mm) OD
• Anti-slip handle reduces hand fatigue and improves control
• Single-pass action minimizes prep time

Will this work on the materials and line types I use?

The LTTR1 is compatible with a broad variety of common tubing materials found in automotive and industrial systems. It handles brake, fuel, transmission, and coolant lines as well as copper and aluminum service lines, so you can keep one tool for multiple applications.

• Designed for steel, stainless steel, copper, aluminum and PVC
• Suitable for brake, fuel, transmission and coolant tubing
• Ranges from 3/16" to 1/2" outer diameter tubes
• Works for both repair shops and DIY maintenance

How does construction and design improve safety and longevity?

Durable metal construction resists rust and deformation, keeping cutting edges true over time. By producing clean, square ends free of metal slivers, the LTTR1 reduces the risk of contaminated fittings and potential leaks that can result from poor prep.

• Premium metal body for corrosion resistance and strength
• Precision-engineered blades maintain consistent cuts
• Solid build minimizes wobble during use
• Reduces chance of metal shards entering fluid systems

How easy is the tool to use for a beginner?

The LTTR1 is simple to operate: select the correct tube size, insert the tubing into the tool, and rotate to remove the burr. The ergonomic handle and efficient cutting geometry make it straightforward for first-time users to get clean, flare-ready ends with minimal practice.

• No special training required—manual rotating action
• Clear size range avoids guesswork for common tubing
• Compact profile fits tight engine bays and workspaces
• Quick cleanup and maintenance after use

Who is this for? The DearChan LTTR1 is aimed at automotive technicians, fleet maintenance personnel, home mechanics, and hobbyists who need a dependable, compact deburring and rimming tool that covers the most common tubing sizes. If you routinely work on brake, fuel, transmission, or coolant lines—or if you want a single, durable tool that handles multiple metals and plastic tubing—this tool offers consistent prep for safer, more reliable fittings.