Drill bit HSS 3.5 mm DeWalt DT5542, high-speed steel

Twist drill bit DeWalt DT5542, 3.5 mm diameter, is made from high-speed steel (HSS) and intended for drilling precise holes in metal, wood and plastics where HSS performance is appropriate. The cylindrical shank fits standard drill chucks and is suitable for general workshop, construction and repair tasks that require a reliable HSS cutting geometry and wear resistance.

Advantages

This HSS 3.5 mm drill bit delivers consistent cutting performance and good wear resistance for a variety of common materials. Its twist-flute geometry supports efficient chip evacuation and stable drilling. The solid HSS construction provides heat resistance under typical drilling speeds, enabling accurate hole quality and long service life when used within recommended conditions.

Suitable for (tasks / use cases)

• Drilling small-diameter holes in mild steel and non-hardened metals
• Drilling through wood for dowels, pilot holes and fittings
• Creating holes in plastics and composite panels
• General maintenance, repair and assembly in workshops and construction sites

Key specifications

• Diameter: 3.5 mm
• Material: high-speed steel (HSS)
• Type: twist drill / spiral flute
• Shank: cylindrical for standard chucks
• Intended materials: metal, wood, plastics

How to use

Secure the drill bit in a compatible drill chuck, ensuring it is held straight and tightened. Select an appropriate drill speed for the material being cut (lower speeds for harder metals, medium to higher speeds for wood and plastics) and apply steady, moderate pressure. Use cutting fluid or coolant when drilling metals to reduce heat and extend bit life. Withdraw the bit periodically to clear chips when drilling deep holes and avoid excessive side-loads that can cause breakage.

Usage recommendations

For best results, match drill speed and feed to the work material: use cutting fluid for metals, slower speeds for hardened or stainless materials, and higher speeds with light pressure for wood and plastics. Store the bit in a protective holder to prevent damage to the cutting edges and inspect for wear before reuse.