Spanish buyer note:If your address contains the following zip code, please do not select Spanish warehouse. The zip code starts from /51 /52/ 07 /35 /38.Overseas warehouse cannot be delivered. Otherwise, we will ship the order from china warehouse.8pcs 3-10mm Wood Drill Locator Hex Wrench Set Stainless Steel Drill Bit Depth Stop Limited Ring Collars Positioner Hand ToolsFeature:The backing ring is made of 304 stainless steel, which has high hardness, corrosion resistance, heat resistance and durability. Double threaded hole, stronger clamping force, can lock the drill bit firmly. It is attached to the drill bit to limit the drilling depth and ensure consistency of the drilling depth. Specification:Material: Stainless Steel Dimensions (Inner Diameter): 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm Package Size: About 82 x 4 7mm/3.23 x 1.85 inchesNote: Due to the different monitor and light effect, the actual color of the item may be slightly different from the color showed on the pictures. Please allow 1-2mm measurement deviation due to manual measurement.8 X Limit Rings1 X Inner Hex Wrench