Drill bit DeWalt DT5056-QZ, 133 mm length, for metal, 1 pc

DeWalt DT5056-QZ drill bit, 133 mm length, is designed for drilling metal in general metalworking, fabrication, repair and maintenance tasks. The bit is supplied as a single piece and fits standard chucks for both portable and stationary drills. Its geometry and coating are engineered to improve durability and reduce overheating during drilling of steel and other ferrous materials.

Advantages

The drill bit features an innovative tapered web that reduces the risk of breakage under load, and a gold ferrous oxide coating that helps prevent overheating and increases working life. Three flat sides on the shank eliminate slipping in the chuck for more reliable torque transfer. Permanent size markings above the shank make bit selection and visibility easier during work.

Suitable for

• Portable and bench drilling of steel and alloyed metals
• Fabrication and repair tasks on construction and mechanical parts
• Maintenance work requiring precise through-holes in ferrous materials

Key specifications

• Length: 133 mm overall
• Material suitability: ferrous metals including alloyed and non-alloyed steel up to 900 N/mm² tensile strength
• Shank design: three flat sides to prevent slipping in the chuck
• Coating: gold ferrous oxide to reduce overheating and extend tool life
• Web design: tapered web to reduce breakage risk
• Supply: single piece per pack

How to use

Select a drill speed and feed appropriate for the metal type and thickness being worked on, clamp the workpiece securely, and fit the bit into a properly tightened chuck that accepts a three-flat shank. Apply steady pressure and allow the bit to cut without forcing; use cutting fluid when drilling harder steels or on prolonged operations to reduce heat and improve chip evacuation. Withdraw the bit periodically to clear chips if drilling deep holes.

Usage recommendations

For best results, use moderate speed and cutting oil when drilling alloyed or higher-tensile steels. Ensure the chuck is clean and tightened onto the three-flat shank to avoid slippage; inspect the bit for wear before each use and replace when cutting performance deteriorates.