APC-2 - caps / APC-7 caps Ejector sleeves material was made out of soft material that caused premature wear due to thin wall construction that cause flash & deformation that required to be replaced every 100,000 cycles (every 2 weeks), also constant downtime hours. The new material on these sleeves made of brace are more durable and have duplex coating that lasts longer (up to 6 months that's 1.5 million cycles). without downtime to be replaced also eliminating defects.