Klein's unique Angle Setter® technology for quick, accurate repeated bends saving time on the job (Patent Pending);Made in the USA Angle Setters create a hard stop for fast, accurate bending;Movable for four different bend angles: 10-Degree, 22.5-Degree, 30-Degree, 45-Degree (adjusted for conduit spring back);Align the angle lines on the Angle Setter with the bender, ensure the alignment tabs are fully seated in the bender track notches, press the Angle Setter firmly into place;Conduit insets into bender head, bend as usual until the conduit makes contact with the setter;Compatible with Klein Tools' 1-Inch Iron Conduit Benders (Cat. No. 51605)