It is a telescopic handle system designed to adjust the butt length of the fishing rod. (It can be used both for tuning existing rods and for new rod building work.) Through tuning of existing rods, the length can be extended up to 15cm.
Considering the thickness of the aluminum rear grip, it can be applied to mandarin fish, kkeokji, bass, and rockfish rods below ML.
Butt Thickness : 8mm (Barrel Aluminum) / Thickness of reel seat insert (silver color) 10.8mm / Material : Aluminum
Applicable carbon pipe : CK130 (외경 : 12.8mm/ 내경 :11mm )
Applicable reel seat : Fuji VSS16, Rodcraft RVSS16 (I.D. 13mm), For I.D. of 13 to 15 mm, masking and epoxy work are required between the insertion part (silver color) and the gap.
SF-EXT is divided into left and right parts based on the locking nut (knurled part) in the middle, and the silver color part is inserted into the reel seat/grip part. The opposite side is assembled with the end cap. It is in the form of loosening the tightening by turning the locking nut (knurled part) in the middle, adjusting the length, and then locking it again.