Trend C116 x 1/4 TCT 90° Bearing Guided Trimmer Cutter 12.7 x 25.4mm TREC11614TC Self-guided trimming bits. Used for trimming plastic or plywood overlays. Also for copy profiling with a template. Raise cutter in stages to spread wear of cutting edges TCT. Shank 1/4in D = 12.7 mm C = 25.4 mm TREC11614TC