When you need a strong 36” spear shaft, you need an AB Biller Spear Shaft. They’re made from a spring steel alloy that originally developed for the U.S. Navy that’s been heat treated to Rockwell 44C. This shaft has a unique combination of hardness and spring tension. This particular spear shaft has 3 grooves along it to accommodate up to 3 spear bands, and the 6 mm threading offers the possibility for a wide variety of spear tips. The 3-grooved, 36” spear shaft fits AB Biller Speargun Models: SM 36, ST 36, SP 36, and SS 36.

AB Biller Spear Shaft 3 Grooves Features:

• Suitable for AB Biller Speargun Models: SM 36, ST 36, SP 36, and SS 36
• 36” long
• Heat treated spring steel alloy construction
• 6mm threading for virtually infinite speartip options
• Unique combination of hardness and spring tension