Festool Kapex Crown Stops AB-KA-UG/2 have been improved for 2019 to expand the versatility of the Kapex sliding compound miter saw and UG extensions. These crown stops support nested workpieces at any angle and provide enhanced material support to either the left or right side of the saw, making your cutting tasks more precise and efficient. Designed to be compatible only with KA-UG extensions, which are sold separately, this set includes two crown stops to help you achieve better stability and accuracy in your work. Model Number: 203356