Tent Nail TC21 Titanium Alloy Short Stick $ 39.50 Specification: Uses: Scribing thick glass, cutting tile knife, spatula, tent nails, etc. Material: TC21 titanium alloy + zirconium beads Hardness: heat treatment 51-55HRC (vacuum heat treatment, multiple quenching cryogenic process) Packing list: Short stick (without k sheath) / short stick + k sheath