Tight Point Shuttle T-Lock Broadheads. Shuttle T-Lock broadheads fly perfect, cut larger holes, penetrate deeper, and are guaranteed not lose any blades. Achieving success in the field requires a fast, accurate, quiet broadhead that cuts a big wound channel. The Shuttle T-Lock is made entirely of heat-treated stainless steel for high impact strength. Cutting diameter is 1 3/16". Shuttle T-Lock broadheads. 3-Pack.