DURABLE MATERIAL- This hydraulic crimping tool is made of aluminum alloy material ensure the durability. Stamper hardness can reach up to 53 HRC, making the crimping effect better. INTEGRAL HYDRAULIC- This hand-held integral hydraulic press A/C hose crimper is made for easy using. Pressure is controlled by a piston manual valve. No leaks to any fittings. INSTANT SETUP- The pin crimping tool has complete dies for the most common sized hoses and fittings. The dies can be snapped quickly into the press fixture requiring no pins or screws. LIGHTWEIGHT & COMPACT- One-person ...