1. Core Features & Applications
-
Core Function: This professional tool is specifically designed to rotate and retract the piston of rear brake calipers—equipped with electronic parking brakes or mechanical handbrakes—back to their initial position during brake pad replacement. It is an essential step for servicing rear disc brakes, which cannot be accomplished using standard tools.
-
Primary Use: Ideal for most passenger cars and SUVs equipped with rear disc brakes and integrated parking brake systems. Compatible with a wide range of vehicle models.
-
Solves Key Issues: Replaces inefficient and risky brute-force methods, preventing damage to sensitive brake calipers. Ensures a fast, safe, and standardized piston retraction process.
2. Key Product Highlights
-
6-in-1 Multi-Function Design: One end of the tool features six different sizes and shapes of pressing heads (including 4.4mm, 5mm, 5.8mm, 7.1mm, 14.4mm, etc.), designed to fit most rear brake caliper piston slots across various car brands. One tool meets all your needs.
-
High-Quality Carbon Steel Construction: Forged from durable carbon steel and treated with an anti-rust electroplated finish, this tool offers exceptional strength, wear resistance, and longevity—even in demanding automotive repair environments.
-
Compact, Lightweight & Easy to Use: Weighing only 95g (including storage case), this compact tool is easy to carry and store. It connects directly to a 3/8" drive ratchet, socket, or extension bar, allowing for effortless rotation and retraction of the piston with minimal effort.
-
Efficient & Time-Saving: Engineered for quick and precise adjustments, this tool significantly reduces brake service and maintenance time compared to universal tools, boosting workshop efficiency.
3. Product Specifications
-
Material: Carbon Steel (Electroplated Anti-Rust Finish)
-
Drive Interface: 3/8" Square Drive (Mid-Drive)
-
Dimensions: Tool length approx. 33.2mm; includes multiple head sizes: 4.4mm, 5mm, 5.8mm, 7.1mm, 14.4mm, etc. (Actual sizes may vary slightly.)
-
Weight: 95g (Including Storage Box)
4. How to Use
-
Safely lift the vehicle and release the parking brake before starting brake pad replacement.
-
Remove the rear brake caliper from the disc.
-
Select the most suitable pressing head from the tool based on the size and shape of the piston’s end grooves.
-
Insert the 3/8" square drive into your ratchet wrench, then align the chosen head firmly into the piston slots.
-
Slowly turn the ratchet clockwise or counterclockwise (as required). The piston will simultaneously rotate and retract smoothly back into the caliper bore.
-
Once fully retracted, install the new brake pads and reassemble the caliper.
Key Features Recap:
-
✅ 6-in-1 Universal Design
-
✅ Compatible with Electronic & Mechanical Parking Brakes
-
✅ Durable Carbon Steel Build
-
✅ Fits 3/8" Drive Ratchets & Sockets
-
✅ Compact, Lightweight & Easy to Store
-
✅ Saves Time & Prevents Caliper Damage
Ideal for professional mechanics and DIY enthusiasts looking for a reliable, multi-fit solution for rear disc brake maintenance.
