Baolian Woodworking Spiral Drill Bit Set for Wood Door Lock Installation and Drilling Tool Kit

Electric drills (minimum 800W power recommended for hardwoods and larger diameters)

Cordless drills (48V lithium battery recommended)

Drill presses

Softwood and hardwood (e.g., white birch, beech, sandalwood, ash, pine, elm)

Plastics, rubber, polyurethane

Not suitable for drilling metal or bamboo (due to risk of cracking)

Do not exceed recommended rotational speeds to avoid overheating and damage

Use high-power drills for hardwoods and deep holes

After use, clean and apply anti-rust oil to prolong tool life

Drill tip may dull over time; sharpen with a file before reuse

Keep out of reach of children due to sharp tip

Drill bits with or without extension rods (150mm or 330mm)

Manual measurements may have slight deviations; actual product prevails

Hexagonal shank ensures non-slip and powerful torque transmission

Self-tapping thread accelerates drilling and improves accuracy