HUHAO HSS Titanium-Coated Super Hard Twist Drill Bits for Metal, Aluminum Alloy Drilling, Steel And Electric Hand Drill Bits, 13-Piece Set

2. Ensure proper cooling when drilling hard or impure metals

3. Clear debris promptly for thick materials to prevent jamming

1. Press down and pull out simultaneously

2. Fully extend all parts

3. For tight fit, gently adjust to prevent detachment

HUHAO twist drill bits are cutting tools primarily used for metal drilling. Proper speed control is crucial for optimal performance and longevity.