Features 1、Can automatically adapt to the slope requirement. 2、Lighter weakening of the shaft and keyway stress concentration is small. 3、The set including 21 kinds of woodruff key to meet different requirements. 4、Made of fine material of long service life and good durability. 5、They are integrated in a box,portable and convenient to access and store. Specification Item Type:Woodruff Key Package List 10PCS 2x7x2.6 Woodruff Key 10PCS 2x10x3.7 Woodruff Key 10PCS 2.5x10x3.7 Woodruff Key 10PCS 3x10x3.7 Woodruff Key 10PCS 3x13x5 Woodruff Key 10PCS 3x16x6.5 Woodruff Key 10PCS 3x19x7.5 Woodruff Key 10PCS 4x13x5 Woodruff Key 5PCS 4x16x6.5 Woodruff Key 5PCS 4x19x7.5 Woodruff Key 5PCS 5x16x6.5 Woodruff Key 5PCS 5x19x7.5 Woodruff Key 5PCS 5x22x9 Woodruff Key 5PCS 5x25x10 Woodruff Key 5PCS 6x22x9 Woodruff Key 5PCS 6x25x10 Woodruff Key 3PCS 6x28x11 Woodruff Key 3PCS 8x25x10 Woodruff Key 3PCS 8x28x11 Woodruff Key 3PCS 8x32x13 Woodruff Key 3PCS 10x32x13 Woodruff Key