Aluminum Finger Spool Reel  is an important piece of  diving equipment especially in technical, wreck and cave diving. It helps divers  to return to their starting point. By simply anchoring a line to a point just outside the cave opening or at the entrance point of the wreck you can unroll your line from the spool as you progress through the dive and when it is time to exit the cave or wreck , turn around and slowly wind the line back onto the reel until you’ve exited the cave/wreck.

The finger spool reel material exists the Derlin, stainless steel, ABS and Nylon. The obvious feature is the different density.

Aluminum: 2.6
Stainless Steel: 7.8
Derlin: 1.4
ABS: 1.05
Nylon: 1.15

Considering from the quality, the metal of Aluminum and Stainless Steel is much better than the plastic of Derlin, ABS and Nylon. Because the metal parts are more stronger, it will be bent if they get the much pressure. If the plastic reel get the same pressure, they may be burst to bring the large risk to the diver.

Safe is the first important thing during diving, so my advice to anybody considering the purchase of their first spool is buy aluminum finger spool reel directly .

If you are looking for the aluminum finger spool supplier or manufacturer, please contact us, you will get the competitive offer from Tianhui Machining.