Rob Allen Spring Steel Spears made in South Africa by Rob Allen Dive Factory. Don’t fall for imitation spears made by other South African companies to look like RA spears but are nowhere near as strait. Please see video below to check your spear straightness.
Most popularized 17 4 PH spears when hardened correctly are supposed to be 52 Rockwell C which sets it at around 1700 MPA in tensile. When actually tested many are not above 48 C measuring around 1450 to 1500 MPA.
Rob Allen carbon spring steel is 50 to 52 Rockwell C and 2000 to 2100 MPA, no spear is tougher or more resistant to bending.
Please note that Freediving and spearfishing are inherently dangerous sports and should only be undertaken by experienced, well-trained divers. More powerful spearguns must be fired with two hands and a locked elbow to prevent injury from excess recoil. Do not load or unload your speargun out of the water, treat every speargun as if it were loaded. Never point your speargun at anything you do not intend to shoot. Before you begin your dive, be sure to check all your gear. You should never dive alone and your equipment should be serviced regularly. You should always plan your dive and dive your plan. You should discuss safety precautions, your plan, and contingency plans with everyone onboard BEFORE you dive. Communication among divers and operators is imperative. Failure to adhere to these guidelines could potentially result in physical harm or death. Blue Tuna Spearfishing is not responsible for any loss, damage, harm, or death caused by using any of our products.