Drill Bit Set DeWALT DT5921

The Drill Bit Set DeWALT DT5921 contains precision-ground twist drills engineered for rapid drilling, long service life and excellent concentricity. Manufactured from high-speed steel to DIN 338 standards and ground from solid stock, these drill bits feature a right-hand cutting, type N flute and a 118° point angle for accurate starts and consistent hole quality. Finished bright with diameter tolerance to h8, the set supports reliable performance across common drilling tasks; larger sizes above 13 mm have shanks reduced to 12.7 mm for compatibility with chucks that accept a 1/2" reduced shank.

Advantages

DeWALT DT5921 drill bits are made from HSS material, providing wear resistance and sustained cutting performance in a variety of materials. The precision grinding ensures concentric holes and smooth operation, while the 118° point reduces walking at the start of drilling. Tight diameter tolerance and solid-stock manufacturing contribute to consistent hole sizes and long tool life. The bright finish simplifies inspection and handling during work.

Suitable for

• General metalworking, including mild steel and non-ferrous metals
• Wood and wood-based materials where a standard twist drill is required
• Plastics and composite materials with appropriate speeds and feeds
• Workshop, construction and DIY drilling tasks requiring repeatable hole accuracy

Key specifications

• Material: High Speed Steel (HSS) to DIN 338
• Flute type: Type N, right-hand cutting
• Point angle: 118°
• Diameter tolerance: h8
• Finish: Bright
• Shank detail: Sizes above 13 mm reduced to 12.7 mm shank

How to use

Secure the appropriate drill bit in the drill chuck and set the drill to the correct speed for the material being drilled. Mark the drilling point and, if necessary, use a center punch to prevent walking. Apply steady pressure and allow the bit to cut without excessive force; clear chips regularly to prevent overheating. For metals, use cutting fluid as needed to extend tool life and improve finish. After use, clean and store bits in a protective case to maintain their ground edges and concentricity.

Izmantošanas ieteikumi

Use correct speeds, feeds and cooling for the material being drilled; avoid overheating the HSS bits. Match reduced shanks with compatible chucks or use an adapter when required. Inspect bits before each use for wear or damage and replace when edge wear affects hole quality.