Including 8Pcs drill bit (5/64inch, 7/64inch, 9/64inch, 9/64inch, 11/64inch, 5inch, 13/64inch, 1/4inch), 1pcs 100mm screwdriver and 1pcs 65mm magnet screwdriver, which can meet the daily use requirements. Alignment - Align the hinge bit, and align the bit with the hinge hole position. The bit is located in the center of the hole position and will not shift. Quick chip removal on both sides - sawdust will be automatically discharged from the holes on both sides of the drill bit, and the chip removal will be quick without jamming the drill bit. Easy to replace the drill bit - use a small Hex wrench to unscrew the screw on the drill sleeve to quickly replace the drill bit, which is convenient to use. Usage - Please adjust the hole according to the hardness of the wood. If the wood is soft, you can choose a smaller size. If the wood is hard, you can choose a corresponding size or a larger size. Name:Woodworking Hinge Opening Batch Set Quantity:10pc/set Colour:Silver Material:steel Package Contents: 1 * Woodworking positioning batch head set 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.