We report the achievement of transport critical currents in Sr 0.6 K 0.4 Fe 2 As 2 wires and tapes with a T c =34K. The wires and tapes were fabricated through an in situ powder-in-tube process. Silver was used as a chemical addition as well as a sheath material. All the wire and tape samples have shown the ability to transport superconducting current. Critical current density J c was enhanced upon silver addition, and at 4.2K, a largest J c of ∼1200A/cm 2 (I c =9A) was achieved for 20% silver added tapes, which is the highest in iron-based wires and tapes so far. The J c is almost field independent between 1T and 10T, exhibiting a strong vortex pinning. Such a high transport critical current density is attributed to the weak reaction between the silver sheath and the superconducting core, as well as an improved connectivity between grains. We also identify a weak-link behavior from the apparent drop of J c at low fields and a hysteretic phenomenon. Finally, we found that compared to Fe, Ta and Nb tubes, Ag was the best sheath material for the fabrication of high-performance 122 type pnictide wires and tapes.