Spetton spears are made of stainless steel of first quality, under the strictest technical control in stainless steel Threated 17-4p 44hcr of 1600N/mm2.
Afterwards to cut and give cone shape to the tip and they are hardened to avoid bending and to give them elasticity. They have low contest of chrome and carbon, this made them rustproofing.
The holes for the line are finally polished using sand and pressure, the same process used in notches. They have a 70 mm barb, with a reinforced screw.
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