Drill bit set GRAPHITE 5.5 mm hex shank for metal, 2 pcs

Two-piece GRAPHITE drill bit set with 5.5 mm diameter and hexagonal shank designed for drilling metal. The set is intended for use with hand drills and cordless drill drivers that accept hex shanks, providing a compact option for workshop, maintenance and repair tasks where precise 5.5 mm holes in sheet metal, thin plates or similar metal components are required.

Advantages

The hexagonal shank ensures secure seating in chucks and quick-change adapters, reducing slippage during drilling and improving torque transfer. The set contains two identical 5.5 mm bits so a spare is available for continuous work or when one bit becomes worn. Bits are manufactured for metal drilling geometry that supports chip evacuation and consistent hole quality in common ferrous and non-ferrous metals.

Suitable for

• Drilling 5.5 mm holes in sheet metal and thin metal plates
• Workshop repairs and maintenance tasks
• Installation of metal brackets, fittings and fasteners requiring a 5.5 mm pilot or clearance hole
• Use with cordless drill drivers and hand drills with hex-shank adapters or chucks that accept hex shanks

Key specifications

• Diameter: 5.5 mm
• Shank type: hexagonal
• Quantity in set: 2 pieces
• Intended material: metal (sheet metal, thin plates, general-purpose metal drilling)
• Compatible tools: hand drills, cordless drill drivers with hex-shank acceptance

How to use

Secure the hex shank in the drill chuck or quick-change adapter so the bit is firmly seated. Mark the drilling point on the metal surface and, if necessary, use a center punch to prevent wandering. Start drilling at low speed to establish the hole, then increase speed as appropriate for the metal thickness and drill geometry. Apply steady pressure without forcing the bit; allow the drill to cut and periodically withdraw the bit to clear chips. Use appropriate cutting fluid when drilling thicker or harder metals to extend bit life and improve hole quality.

Usage recommendations

For best results, match drill speed and feed to the metal type: lower speeds for harder metals, higher speeds for soft metals and thin sheets. Wear eye protection and gloves when drilling, and secure workpieces firmly. Replace bits when wear or chipping reduces hole quality.