1. Lebihview
The Mastercool 72475-PRC Universal Hydraulic Flaring Tool Set is designed for creating precise flares on automotive tubing. This comprehensive kit includes a hydraulic ram, various die sets, adapters, and a mini tube cutter, enabling the creation of 45° single and double flares, push connect flares, GM fuel line flares, and ISO bubble flares for brake, fuel, and transmission lines.

Figure 1: Mastercool 72475-PRC Universal Hydraulic Flaring Tool Set in its custom-molded storage case.
2. Ciri-ciri Utama
- Original Hydraulic Flaring Tool: Mastercool's patented design ensures precision flares for various automotive lines.
- Heavy-Duty Steel Construction: Reinforced high-strength steel body provides durability and leak-free connections.
- Versatile Flaring Capabilities: Creates 45° single and double flares, push connect flares, GM fuel line flares, and ISO bubble flares for 3/16", 1/4", 5/16", 3/8", and 1/2" tubing, as well as 4.75 mm to 10 mm metric tubing.
- Ram Hidraulik: Facilitates effortless and precise flaring, reducing manual strain.
- Precision-Formed Dies: High-strength steel dies ensure accurate, consistent, and leak-proof connections.
- Magnetic Adapter Holder: Keeps dies and components organized and secure for quick access.
- Integrated Mini Tube Cutter: Includes the Mastercool 70027 Mini Tube Cutter for clean tubing preparation (for 1/8" to 5/8" O.D. tubing).
- Custom-Molded Storage Case: Organizes and protects all components for easy transport and storage.

Figure 2: The original hydraulic flaring tool design by Mastercool, trusted by professionals.

Figure 3: Superior precision with machined dies and durable high-strength steel construction.

Figure 4: Effortless operation with hydraulic power, featuring the magnetic adapter holder and enlarged die set compression area.
3. Kandungan Pakej
The Mastercool 72475-PRC kit includes the following components, neatly organized in a custom-molded plastic case:
- Hydra-flare Yoke & Pump Assembly
- 45° Flaring Cone
- Mini Tube Cutter (Mastercool 70027)
- 45° & Double Flaring Adapters and Die Sets:
- 3/16" Adapter & Die Set
- 1/4" Adapter & Die Set
- 5/16" Adapter & Die Set
- 3/8" Adapter & Die Set
- 1/2" Adapter & Die Set
- Push Connect Adapters and Die Sets:
- 1/4" Adapter & Die Set
- 5/16" Adapter & Die Set
- 3/8" Adapter & Die Set
- GM Fuel Line Adapters and Die Sets:
- 5/16" Adapter & Die Set
- 3/8" Adapter & Die Set
- Metric Bubble Flaring Adapters and Die Sets:
- 4.75mm Adapter & Die Set
- 6mm Adapter & Die Set
- 8mm Adapter & Die Set
- 10mm Adapter & Die Set

Figure 5: All components of the Mastercool 72475-PRC kit, including the mini tube cutter and organized storage case.
4. Persediaan
4.1 Pemeriksaan Awal
Upon receiving your Mastercool 72475-PRC kit, inspect all components for any signs of damage during shipping. Ensure all listed parts in Section 3 are present.
4.2 Preparing the Tubing
- Cut Tubing: Use the included Mastercool 70027 Mini Tube Cutter to make a clean, square cut on the tubing. Ensure the cut is free of burrs.
- Deburr: Carefully deburr the inside and outside edges of the tubing to prevent cracks during flaring and ensure a smooth flow path.
- Bersih: Wipe the tubing clean to remove any debris or metal shavings.
5. Arahan Operasi
5.1 General Flaring Procedure
- Select Dies and Adapters: Choose the appropriate die set and adapter for the tubing size and flare type required. The magnetic adapter holder will secure the adapter.
- Insert Tubing: Place the prepared tubing into the selected die set, ensuring it extends the correct distance beyond the die face according to the specific flare type instructions (refer to Section 5.2).
- Secure Die Set: Insert the die set into the flaring tool's yoke. Tighten the T-handle firmly to clamp the tubing securely. Ensure the tubing is straight and centered.
- Position Flaring Cone: Attach the correct flaring cone (e.g., 45° cone for double flares) to the hydraulic ram.
- Initiate Flaring: Align the hydraulic ram with the die set. Slowly pump the hydraulic handle to advance the flaring cone into the tubing. Continue pumping until the flare is fully formed. The hydraulic system will provide a clear indication when the flare is complete (e.g., increased resistance or a stop).
- Tekanan Lepasan: Open the hydraulic release valve (typically by turning a knob or lever) to retract the flaring cone.
- Remove Tubing: Loosen the T-handle and carefully remove the flared tubing. Inspect the flare for uniformity and absence of cracks.
5.2 Specific Flare Types

Gambar 6: Cthamples of various flare types supported by the Mastercool 72475-PRC tool.
The Mastercool 72475-PRC supports various flare types. Always ensure the correct die set and adapter are used for the desired flare.
- ISO Bubble Flare: Used primarily in European automotive applications. Requires specific metric die sets and adapters. The tubing is flared outwards to form a rounded, bubble-like end.

Gambar 7: Cthample of an ISO Bubble Flare.
- 45° Double Flare: Common for brake and transmission lines. This process involves two stages: an initial inward flare, followed by a second stage that folds the first flare back on itself, creating a double-wall for strength and sealing.

Gambar 8: Cthample of a 45° Double Flare.
- GM Fuel Line Flare: Specific flare type for General Motors fuel lines. Requires dedicated GM fuel line die sets and adapters.

Gambar 9: Cthample of a GM Fuel Line Flare.
- Push Connect Flare: Used for push-to-connect fittings, often found in fuel and transmission systems. Requires specific push connect die sets and adapters.

Gambar 10: Cthample of a Push Connect Flare.
5.3 Pertimbangan Penting
- Always ensure the tubing is clean and deburred before flaring.
- Use the correct die set and adapter for the tubing material and desired flare type.
- Do not over-tighten the T-handle, but ensure the tubing is held firmly to prevent slippage.
- This tool is designed for brake, fuel, and transmission lines. It is not compatible with coolant hoses or rubber hose connections.
6. Penyelenggaraan
- Pembersihan: After each use, wipe down the flaring tool, dies, and adapters with a clean cloth to remove any metal shavings or debris.
- Pelinciran: Periodically apply a light coat of machine oil to the moving parts of the hydraulic ram and the threads of the T-handle to ensure smooth operation and prevent corrosion.
- Storan: Always store the tool and its components in the custom-molded case to protect them from damage and keep them organized. Store in a dry environment.
- Pemeriksaan: Regularly inspect die sets and adapters for wear or damage. Replace any worn components to maintain flare quality.
7. Penyelesaian masalah
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| Tubing slips during flaring. | Tubing not clamped securely; incorrect die size; burrs on tubing. | Ensure T-handle is tightened firmly. Verify correct die set for tubing size. Deburr tubing thoroughly. |
| Flare is cracked or uneven. | Tubing not deburred; incorrect tubing extension; worn die/cone; incorrect material. | Deburr tubing. Ensure correct tubing extension. Inspect and replace worn components. Confirm tubing material is suitable for flaring. |
| Hydraulic ram does not advance or retract smoothly. | Low hydraulic fluid; air in system; dirty components. | Check hydraulic fluid level (if serviceable). Consult manufacturer for service if air is suspected. Clean tool thoroughly. |
| Flare leaks after installation. | Improperly formed flare; damaged flare; incorrect fitting. | Re-flare the tubing, ensuring proper technique. Inspect flare for damage before installation. Use correct fittings for the flare type. |
8. Spesifikasi
- Nombor Model: 72475-PRC
- Jenama: Mastercool
- Flaring Types: 45° Single & Double Flares, Push Connect, GM Fuel Line, ISO Bubble Flares
- Tubing Sizes (Imperial): 3/16", 1/4", 5/16", 3/8", 1/2" O.D.
- Tubing Sizes (Metric): 4.75mm, 6mm, 8mm, 10mm O.D.
- Mini Tube Cutter Capacity: 1/8" to 5/8" O.D. tubing
- Pembinaan: Keluli tugas berat
- Berat Barang: Kira-kira 11.86 paun
- Dimensi Produk: Kira-kira 15 x 10.6 x 3.5 inci
9. Waranti dan Sokongan
Mastercool products are manufactured to high-quality standards. For specific warranty information, please refer to the warranty card included with your product or visit the official Mastercool website. For technical support, replacement parts, or service inquiries, please contact Mastercool customer service directly.
Pengeluar: MASTERCOOL
Webtapak: www.mastercool.com (Sila semak pegawai webtapak untuk maklumat hubungan terkini dan sumber sokongan.)





