●Motor pinion gear 12T x 1
●M3 Set screw x 1(M3x3mm)
●Modulus:0.5
●Shaft diamater:Φ3.5mm
●Weight:0.9g/pc
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T-Rexヘリの部品分解図が下記よりご覧頂けます。
http://shop.align.com.tw/partfinder.php?language=en