door lock hinge drill bit set self centering hinge drill bit for wood plastic

Description: 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 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 Easy to use and install Specifications: 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 about 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 Material: Brass, HSS Color: Sliver Quantity: 4pc/Set Note: Please appropriate adjustments according to the hardness of wood before operating. If making soft wooden, you can choose a smaller size. If the hard one, please choose corresponding or the bigger size. Package included: 4pcs self centering bits hinge wood drill bit

Price £ 6.99