Center bits 7 self-centering bits, made of high-speed steel bits and hardened shells. Adjustable drill depth, high hardness, anti-rust, durable, and outstanding drilling performance
Excellent design The center drill group has an automatic centering function, which can reduce the drill bit walking and improve drilling accuracy and efficiency.
Double-face design Fast, automatic discharge of sawdust from both sides of the hole, no drilling, clogging
Different sizes Hinge drill bits have 7 different sizes: 5/64", 7/64", 9/64", 11/64", 13/64", 5mm and 1/4". With 1 Allen key and 8 replacement drill bits. Meet all your needs
Application High-precision drills are used to drill precise pilot holes in cabinets and door hinges, doors, handles, drawer slides, woodworking, etc. Standard 1/4" hex shank fits all power tool heads and quick-change chucks
Easy to replace and install The self-centering drill set can quickly replace the drill bit without re-checking or using tools. Fast, one-handed loading and release.
▶▶Note:Use low speed when drilling (usually maintained at 2000R/min-3000R/min). Too fast speed will cause eccentricity, breakage, or jam
Suitable for most general purpose electric drills
Efficient and accurate positioning
New upgrade 135° inclined blade drill bit
Double-sided hole discharge sawdust design
Disassembly Step ✅Prepare the center drill bit and hex key ✅Rotating the hex key ✅Grab the top of the bit and unscrew the shell ✅If you need to replace the drill bit, just need to remove the broken bit and install the replacement bit
Specifications: Material: Aluminum+Drill Opening diameter: ✔5/64": Hole cutting diameter is about 2mm, suitable for 2.2-2.8mm self-tapping screw. ✔7/64": The hole cutting diameter is about 2.8mm, suitable for a 3.0-3.5mm self-tapping screw. ✔9/64": The hole cutting diameter is about 3.5mm, suitable for a 4.0-4.5mm self-tapping screw. ✔11/64": Hole cutting diameter is about 4.5 mm, 5.0-5.5 mm self-tapping screw. ✔5mm: Hole cutting diameter is about 5mm, suitable for 5.5-6.0mm self-tapping screw. ✔13/64": The hole cutting diameter is about 5.1mm, suitable for a 5.6-6.1mm self-tapping screw. ✔1/4": Hole cutting diameter is about 6.3mm, suitable for 6.8-7.3mm self-tapping screw.