Exquisite aluminum alloy material, sturdy and , not perishable candle. Adjustable screw length and depth, easy to use and good performance. Automatic nail feeding, no need to support fast, continuous and accurate nail feeding, simple operation, no nails falling. Installed on electric drill, suitable for gypsum board, partition wall, wood board, ceiling, etc. Complete tools, you can operate it yourself, suitable for DIY enthusiasts Item Type: Automatic Chain Nail Application: Electric drill Size: . 45.5mm or 1.8in 46.5mm or 1.8in 235mm or 9.3in 36mm or 1.4in 93mm or 3.7in 24mm or 0.9in 6.4mm or 0.3in 145mm or 5.7in Clamp Drill Interface Size: 41-46mm or 1.6-1.8 inch Note: The product is an automatic screw chain nail , which needs to be used with an electric drill. Material: Metal Colour: As Shown Package Contents: 1 x Chain Nail 2 x Chain with Nails (50Pcs) 1 x Rubber Ring 1 x Screwdriver Bit 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.