Drill bit DeWalt DT70793-QZ — spiral cutting drill bit for aluminium, plastic, steel, wood

DeWalt DT70793-QZ is a spiral cutting drill bit designed for drilling into aluminium, plastic, steel and wood. Engineered for use with hand drills and drill drivers, the bit features a spiral flute that aids chip evacuation and maintains consistent cutting performance across multiple materials. Its black finish reduces glare and helps identify the tool in a toolbox while the geometry supports straight, accurate holes in general metalworking, fabrication, woodworking and DIY applications.

Advantages

The spiral flute design improves chip removal and reduces clogging when drilling through soft and hard materials. A versatile cutting geometry allows one drill bit to perform well on aluminium, plastic, steel and wood, eliminating frequent tool changes. The bit’s construction provides stability during operation and helps maintain hole quality, while its color finish assists visual identification and corrosion resistance in everyday use.

Suitable for

• Drilling mounting holes in metal panels and aluminium profiles
• Fabrication and light metalworking tasks
• Drilling holes in plastic housings and components
• Woodworking and general repair work
• Home improvement and DIY projects requiring multi-material drilling

Key specifications

• Drill type: spiral cutting drill bit with spiral flute for chip evacuation
• Compatible materials: aluminium, plastic, steel, wood
• Finish: black
• Intended use: for hand drills and drill drivers in general-purpose drilling

How to use

Select a drill speed appropriate to the material being worked: lower speeds for steel, moderate speeds for aluminium and plastics, and higher speeds for most wood types. Secure the workpiece and clamp as needed to prevent movement. Install the drill bit in the drill chuck and ensure it is tightened correctly. Apply steady, even pressure without forcing the bit; allow the spiral flute to clear chips naturally. For deep holes, periodically withdraw the bit to remove accumulated chips and reduce heat buildup. After use, clean the bit and store it in a dry place.

Usage recommendations

Use cutting fluid or lubrication when drilling harder steels to extend bit life. For clean edges in plastics and thin metals, support the workpiece close to the drill point to minimize burrs and deformation. Replace the bit when cutting performance deteriorates or when signs of wear such as chipping or rounding of the cutting edge appear.