Sealey Tap & Die Set 40 Pcs Split Dies Metric With T-Handled Tap Wrench AK3040. 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. Sizes: 3-12mm. Model No. AK3040.