The Cornwell Convertible Retaining Ring Pliers Sets, Nos. CTG6R and CTG12R, work on a range of ring sizes from 1/4" to 3-1/2". The tools feature comfort grips and are capable of converting from external to internal. The 6-pc CTG6R has 0.038, 0.047 and 0.070 tips in both straight and 90-degree angle. The 12-pc CTG12R has 0.038, 0.047, 0.070 and 0.090 tips in straight, 90-degree and 45-degree angles.