Drill bit Proline 26825 — metal drill bit Ø25 mm, length 230 mm, 1 pc

Proline 26825 — metal drill bit Ø25 mm, length 230 mm, 1 pc is a single solid drill bit engineered for drilling metal. With a 25 mm cutting diameter and a total length of 230 mm, this bit is intended for drilling through-holes and larger apertures in steel and other ferrous materials when used with a compatible drill chuck. Supplied as one piece and delivered in a plastic case, it is suitable for repair, fabrication and construction tasks where a larger-diameter metal hole is required.

Advantages

The bit features a robust solid design that provides rigidity and resistance to bending during deep or heavy drilling operations. A threaded guide blade helps to pull the bit into the material for controlled, steady advance and improved hole-centering. The hexagonal shank ensures secure grip in chucks and quick-change adaptors, reducing slippage under load. Supplied in a plastic case, the bit is protected during transport and storage.

Suitable for

• Drilling through steel plates and other ferrous metals
• Creating larger-diameter holes for bolts, bushings or pipe passes
• Repair and maintenance tasks in metal fabrication
• Construction site drilling where durable, single-piece bits are required

Key specifications

• Cutting diameter: 25 mm
• Overall length: 230 mm
• Material compatibility: steel and other ferrous metals
• Shank type: hexagonal shank for secure chuck engagement
• Guide type: threaded guide blade for self-feeding action
• Packaging: single piece supplied in a plastic case

How to use

Fit the drill bit into a compatible drill chuck or quick-change holder that accepts a hexagonal shank, and tighten securely. Select an appropriate drill speed for metal drilling and apply steady, moderate pressure; allow the threaded guide blade to pull the bit into the material for consistent advancement. Use cutting fluid or lubricant to reduce heat buildup and prolong bit life, and retract periodically to clear metal chips from the hole. After completing the hole, withdraw the bit while the drill is slowing to avoid damage to the cutting edges.

Usage recommendations

For best results when drilling steel and other ferrous materials, use appropriate cutting fluid, maintain moderate drilling speeds, and ensure the workpiece is clamped securely. Replace the bit if cutting performance declines or if the tip shows visible wear or chipping.