High quality alloy steel taps and dies. Split dies with machined lead-ins for ease of use. Die holder features self-centring mechanism for straight and accurate thread cutting. Set also includes T-handled tap wrench and Metric screw pitch gauge. Supplied in storage case. High quality alloy steel taps and dies. Split dies with machined lead-ins for ease of use. Die holder features self-centring mechanism for straight and accurate thread cutting. Set also includes T-handled tap wrench and Metric screw pitch gauge. Sizes: 3-12mm. Supplied in storage case.