K.O. Lee valve seat installation tool kit. Uses "screw-in" type pilots. Pilots included are: 5/16" (2 ea), 5/16 +1, 5/16+2, 3/8, 3/8+1, 3/8+2, 11/32, 11/32+2, .396, 13/32, 19/32, 1-1/32". Includes electric right angle driver as shown in photo. All tools are clean and in good condition.