Speardiver Stainless Steel 7mm Euro Flopper Shafts
Stainless steel 7mm Euro shafts with single flopper, pencil point and shark-fin tabs
17-4PH Stainless steel 7mm (9/32") diameter Euro notch shafts with 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 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 sharkfin 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") diameter.
- 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 butt of shaft for shooting line attachment.
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.