1. 26.5mm Boring drill bit 2. Can be used to repair water pipes internal thread rupture, broken wire repair tools 3. Efficient water pipe drilling 4. Applicable to PPR water pipes, PVC water pipes, plastic water pipes, pipes 5. 1/2 inch water Pipe Only For PPR water pipes Internal Thread Repair Tool Usage steps: 1. Heat the hot melter to remove the inner thread 2. Let it stand for five minutes 3. Install the hole expansion drill 4. Use the hole opening drill with an electric drill to remove excess plastic on the water pipe 5. Install the 28 die head and heat the die head to melt the old wall plastic parts between the new inner threads 6. the inner thread in while it is hot and the installation is complete Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Color: As shown Material: Metal Package Contents: 1 x 26.5mm Boring drill bit 4 x Fitting Accessories Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.