Juego de 4 brocas autocentrantes para bisagras de puertas y armarios

Productinformation： 4pcs Self Centering Hinge Drill Bits Set Door Cabinet 5/64" 7/64" 9/64" 11/64" Sliver Material: Brass,HSS;Color: Sliver These self centering drill bits put hinges right where they should be in the center 4 of the most often used sizes for carpenters,cabinet,furniture makers and other wood working trades Easy to use and install Positioning accuracy,will not shift,the chips will automatic discharge from the hole on either side of the top of the drill,not stuck drill Material: Brass,HSS;Color: Sliver These self centering drill bits put hinges right where they should be in the center 4 of the most often used sizes for carpenters,cabinet,furniture makers and other wood working trades Easy to use and install Positioning accuracy,will not shift,the chips will automatic discharge from the hole on either side of the top of the drill,not stuck drill Size: 5/64\'\': Hole diameter is about 2 mm,Use about 2.2 - 2.8 mm tapping screw 7/64\'\': Hole diameter is about 2.8 mm,Use a bout 3 - 3.5 mm tapping screw 9/64\'\': Hole diameter is about 3.5mm,Use about 4 - 4.5 mm tapping screw 11/64\'\': Hole diameter is about 4.5mm,Use about 5 - 5.5 mm tapping screw Please appropriate adjustments according to the hardness of wood when opening,if wooden cottage,you can choose a smaller size,if hard wood,choose corresponding or a bigger size. Package include 4 x Wood drill bit tools