Screwdriver Bit DeWALT DT7997T-QZ Length 57 mm Quantity 5 pcs

The DeWALT DT7997T-QZ screwdriver bit is a 57 mm long, 5-piece set designed for durability and precision in screwdriving tasks. Manufactured from a hardened steel alloy, these bits provide consistent tip retention and resist wear during repeated use. The 57 mm length gives extra reach in recessed or awkward screw locations while maintaining accurate torque transfer for controlled fastening.

Advantages

These bits deliver longer service life through heat-treated construction and precision-machined tips that reduce rounding of screw heads. The design minimizes wobble and ensures less than 4° movement during operation, which improves contact stability and reduces cam-out. Supplied in a set of five, the pack supports extended work sessions and reduces downtime for bit changes.

Подходит для

• Монтаж и демонтаж крепежа в плотных или труднодоступных местах
• Профессиональная отделка и сборка мебели
• Строительно-монтажные работы и ремонтные задачи
• Домашние проекты «сделай сам» и регулярное обслуживание

Key specifications

• Bit length: 57 mm
• Quantity in pack: 5 pieces
• Material: hardened steel alloy (heat-treated)
• Tip design: precision-machined to reduce screw head rounding
• Operating stability: less than 4° movement during use

How to use

Insert the bit into a compatible screwdriver or driver chuck until it securely seats. Use appropriate torque settings on powered drivers to avoid over-tightening and select the correct bit orientation for the screw head. For recessed or hard-to-reach screws, use the 57 mm length to gain access while keeping the driver steady to maintain accurate alignment.

Usage recommendations

Store bits in a dry container and inspect tips before use; replace any bit showing excessive wear or deformation. Match the bit size and type to screw heads to prevent damage. For repeated high-torque applications, use controlled torque settings and allow periodic cooling to extend bit life.

These DeWALT screwdriver bits are intended for users who require reliable, low-wobble performance in both professional and DIY environments. The combination of length, material treatment, and precise tip geometry supports consistent fastening results.