Drill bit DeWalt DT9621-QZ, length 10 mm, single pack

DeWalt DT9621-QZ drill bit, 10 mm length, single pack is a general-purpose masonry drill accessory designed for use with compatible chucks and SDS-Plus systems where applicable. The bit features a new tip geometry for improved penetration and speed, a hardened body to reduce breakage, and an optimized flute design to help evacuate debris during drilling. Supplied as a single-piece pack with a pack weight of approximately 1 kg, this 10 mm drill bit is intended as a reliable replacement or spare for workshop, construction, and maintenance tasks.

Advantages

The updated tip design delivers faster drilling and better initial bite into masonry materials while the superior carbide grade and hardened body extend tool life and reduce the risk of breakage. An optimized flute profile improves chip removal, lowering the chance of clogging and increasing drilling efficiency. Overall, the bit balances speed, durability and consistent performance for routine drilling operations.

Suitable for

• Drilling holes in concrete, brick and other masonry materials
• Repair and maintenance jobs in construction and renovation
• Workshop tasks requiring a 10 mm masonry drill bit as a replacement or spare

Key specifications

• Diameter: 10 mm
• Length: 10 mm (overall length as specified)
• Tip: new optimized tip geometry for improved penetration
• Shank type: compatible with standard drill chucks and SDS-Plus systems where applicable
• Body: hardened construction for extra strength and reduced breakage
• Flute design: optimized for efficient debris removal
• Material: tungsten carbide tip / hardened steel body (carbide grade optimized for long life)
• Pack: single-piece pack

How to use

Select a drill with the appropriate chuck or SDS-Plus compatibility and securely fit the 10 mm DeWalt DT9621-QZ drill bit. Mark the drilling point, start at low speed to create an initial guide hole, then increase speed and apply steady pressure appropriate to the substrate. Use intermittent extraction to allow debris to clear from the hole and reduce heat build-up. For deeper holes, withdraw the bit periodically to remove accumulated material from the flutes.

Usage recommendations

Use appropriate personal protective equipment such as safety glasses, hearing protection and gloves. For best performance and extended tool life, match drilling speed and feed rate to the masonry material, avoid excessive side loading, and periodically clear debris from the hole. Store the bit in a dry place to prevent corrosion when not in use.