Drill bits set, Dedra WMT07010 — 7 mm diameter, 109 mm length, 10 pieces, for metal

Dedra WMT07010 is a set of ten identical 7 mm drill bits with a working length of 109 mm designed for drilling metal. The kit contains ten pieces intended for making through-holes, mounting holes and general metal fabrication tasks. These straight-shank bits fit standard drill chucks and are intended for use with appropriate drilling speeds and coolant or cutting fluid to maintain cutting performance and extend tool life.

Advantages

The set provides consistent hole size across multiple bits, simplifying repeated operations and reducing downtime for bit changes. Uniform geometry and length ensure predictable drill behaviour in metalworking. Supplied as a 10-piece pack, the set is practical for workshop use, maintenance tasks and production runs where multiple identical bits are required.

Suitable for

• Drilling through-holes in steel and other ferrous metals
• Preparing mounting holes for brackets, fasteners and fixtures
• General metal fabrication and workshop maintenance
• Repeated production or repair tasks requiring consistent 7 mm holes

Key specifications

• Drill bit diameter: 7 mm
• Overall/working length: 109 mm
• Quantity in set: 10 pieces
• Material suitability: metal (ferrous and non-ferrous depending on speed and cooling)
• Shank type: straight shank for standard drill chucks

How to use

Secure the chosen drill bit in a compatible drill chuck, ensuring the bit is centered and firmly clamped. Select a drill speed appropriate for the metal being drilled and apply cutting fluid or coolant when recommended to reduce heat and improve chip evacuation. Start drilling with light pressure to establish the hole, then increase steady feed while maintaining coolant flow. Retract periodically on deep holes to clear chips and avoid clogging. After use, clean chips from the flutes and store bits in a dry place.

Usage recommendations

Use lower speeds and steady coolant when drilling hardened steels; higher speeds may be acceptable for softer non-ferrous metals. For best accuracy, use a center punch to mark hole locations before drilling and clamp workpieces securely to minimise runout and vibration.