Speardiver Stainless Steel Euro Speargun Spears 7mm 7.5mm Shafts
Euro speargun spear, stainless steel 7mm and 7.5mm shafts with single flopper, pencil point and shark fin tabs
Euro speargun spears with 7mm and 7.5mm diameter 17-4PH hardened stainless steel shafts. Pencil point, single flopper (opening down) with a penetration cone in front and shark-fin loading tabs. Heat treated to 45 Rockwell hardness. All shafts have three loading tabs and a rest tab for ease of loading. Tab height is 5mm, tall enough to use in an enclosed track speargun. There are holes in the rest tab, forward most loading tab and the butt of the shaft for shooting line attachment.
These are very well engineered shafts. Pencil point tip with 6° angle offers solid performance balance for penetration and resistance to bending when hitting rocks. The penetration cone in front of the flopper streamlines the shaft and decreases penetration resistance, at the same time preventing fish scales and skin from getting stuck in the flopper at the pin impeding its movement. The flopper is perfectly tuned to maintain open position once deployed. Three shark fin tabs offer possibility of maximum power/band stretch for divers who can pull the band right up to the trigger mechanism, or a little less for more relaxed loading.
- 17-4PH Stainless steel.
- Heat treated 45 Rockwell hardness.
- 7mm (9/32") and 7.5mm diameter shafts.
- Euro notch fits all euro style spearguns like OMER, Cressi, Rob Allen, Riffe Euro, Mares etc.
- Pencil point 6° angle.
- Heavy duty 3" single flopper (on bottom).
- Penetration cone in front of flopper.
- 3 loading shark-fin tabs 5mm tall deburred edges.
- Rest tab 5mm tall with hole for shooting line attachment.
- Hole in forwardmost loading tab for shooting line attachment.
- Hole in butt of shaft for shooting line attachment.
Euro refers to the round cut notch at the back end of the shaft that engages in the trigger mechanism. In contrast American style shafts have a square cut notch that's compatible with spearguns using American style trigger mechanisms.
Flopper/barb on the bottom of shaft (opening down) is the preferred flopper position. Some divers believe a flopper on the top makes for a more streamlined spear because it remains closed as you aim the speargun, this is incorrect. A top positioned flopper will remain in closed position as long as the speargun is held perfectly horizontal, but the moment it's aimed at a downward angle, as is often the case, the flopper will pop up and obscure the sight picture completely hiding the fish and ruining your shot. In any case the moment the shaft starts accelerating the flopper closes due to water resistance. The spear also spins as it travels so the flopper is never continuously on either the bottom or top.