Drill bit set STANLEY STA50020 — 3 pieces, 3 mm diameter

STANLEY STA50020 — drill bit set with three 3 mm twist drill bits designed for general drilling tasks. Each bit measures 3 mm in diameter and 61 mm in overall length, intended for use with handheld electric drills and drill presses. These bits are suitable for drilling small, precise holes in a range of materials when used with the appropriate drill type, speed and cutting technique. The set is compact and intended for small assembly, repair and DIY projects that require consistent small-diameter holes.

Advantages

The set contains three identical 3 mm bits to ensure repeatable hole size across multiple operations. With a 61 mm overall length, the bits provide adequate reach for thin sheets and small components while maintaining rigidity for controlled drilling. The bits are suitable for use on metal, wood and plastic when paired with the correct speed and feed, allowing a single set to cover several common workshop tasks. The consistent geometry supports stable drilling and straightforward bit replacement when switching between operations.

Suitable for

• Small assembly and fastening tasks requiring 3 mm holes
• Repair and maintenance of metal, wood or plastic components
• DIY projects where precise small-diameter holes are needed
• Use with handheld drills and drill presses for controlled drilling

Key specifications

• Quantity: 3 pieces
• Diameter: 3 mm
• Overall length: 61 mm
• Bit type: twist drill
• Colour: black
• Typical materials: metal, wood, plastic (depends on drill speed and technique)

How to use

Select a drill with an appropriate chuck capacity and secure a 3 mm bit firmly in the chuck. Mark the drilling position, clamp the workpiece if possible, and set the drill to a speed suitable for the material. For metal, use lower speeds and cutting fluid; for wood and plastics, use higher speeds while avoiding melting or splintering. Apply steady, even pressure and withdraw the bit periodically in deeper holes to clear chips. After use, clean the bits and store them to prevent damage.

Usage recommendations

Use the 3 mm STANLEY drill bits at recommended speeds for the material, employ cutting fluid when drilling metals, and always secure the workpiece to maintain hole accuracy and extend bit life.