Ratchet Thread Die Holder Adapter for 20mm to 50mm Dies

Adapter allow round thread dies to be used with a ratchet, t-bar, spanner etc... Available in 4 sizes to suit thread dies 20mm, 25mm, 38mm and 50mm diameter. 20mm and 25mm sizes feature a 3/8in square drive for use with 3/8in extensions, bars, ratchets etc and 21mm hex for use with spanners and sockets etc... 38mm and 50mm sizes feature a 1/2in square drive for use with 1/2in extensions, bars, ratchets etc and 25mm hex for use with spanners and sockets etc... Die is held securely with four grub screws. Hex key included. Knurled grip on body. 20mm size - 53mm max internal depth. 25mm size - 53mm max internal depth. 38mm size - 66mm max internal depth. 50mm size - 86mm max internal depth.