Drill Bit STANLEY STA51043 universal cylindrical 42 mm

The STANLEY STA51043 universal cylindrical drill bit with a 42 mm diameter is designed for producing clean, straight cylindrical holes. Intended for general drilling tasks, this bit fits drills that accept cylindrical shanks and is most commonly used in woodworking, light construction, and repair work where an exact 42 mm hole is required. The tool’s geometry and material selection balance cutting performance and longevity for routine on-site and workshop use.

Advantages

This 42 mm cylindrical drill bit provides consistent hole diameter and a stable cutting action that reduces wandering during start-up. Its universal design allows compatibility with a wide range of hand and bench drills that accept cylindrical shanks. The bit’s construction targets a practical balance between cutting speed and wear resistance, making it suitable for repeated use in non-specialized drilling tasks.

Suitable for

• Drilling 42 mm diameter holes in soft and medium-density wood
• Light construction and carpentry tasks requiring precise cylindrical holes
• Repair and retrofit jobs where replacement or new openings must match 42 mm fittings

Key specifications

• Type: Universal cylindrical drill bit
• Diameter: 42 mm
• Shank style: Cylindrical shank for standard drill chucks
• Typical applications: Woodworking, light construction, repair and maintenance

How to use

Secure the cylindrical shank in the drill chuck, ensuring the bit is straight and tightened. Select a drilling speed appropriate to the material—moderate speed for wood to avoid burning and slow to medium speed for harder, denser materials. Mark the drilling point and start with light pressure to establish the hole, then apply steady pressure until the full diameter is reached. Withdraw the bit periodically on deep holes to clear chips and reduce heat buildup.

Usage recommendations

Use compatible drill chucks that provide a secure grip on cylindrical shanks and wear eye protection and hearing protection when operating power tools. For best results in wood, use a backing board to prevent tear-out and consider a pilot hole or center punch when drilling near edges. Do not use the bit on reinforced concrete or masonry unless specifically indicated for such materials.