Core Bit FEIN TCT Ultra 35 12 mm Weldon Holder Metal Drill

The FEIN TCT Ultra 35 Core Bit with a 12 mm diameter and 3/4" Weldon holder is engineered for metal drilling. It provides high cutting performance and a very long service life, with a cutting depth of 35 mm and an overall depth of 110 mm. The core bit is light (approx. 40 g) and intended for single-piece use in precision metalwork.

Advantages

The tungsten carbide-tipped (TCT) design ensures durable cutting edges and consistent performance on metal. Metric dimensions and a standardized 3/4" Weldon holder allow easy mounting on compatible metal drills. The 35 mm cutting depth balances material removal capacity with stability for accurate holes.

Suitable for

• Drilling holes in metal sheets and thin-walled metal parts
• Precision metalworking and fabrication tasks
• Workshop and industrial maintenance where a Weldon-holder core bit is required

Key specifications

• Brand: Fein
• Model / MPN: 63127714010
• Diameter: 12 mm
• Cutting depth: 35 mm
• Overall depth: 110 mm
• Holder: 3/4" Weldon
• Weight: approx. 40 g
• Suitable material: metal

How to use

Mount the core bit securely in a compatible 3/4" Weldon-holder drill spindle according to the drill manufacturer's instructions. Align the bit with the marked drilling position, apply steady feed pressure, and run the drill at the recommended speed for metal. Use appropriate cutting fluid if required to reduce heat and prolong tool life. After drilling, retract the core bit carefully and clear chips from the hole.

Usage recommendations

Use suitable personal protective equipment (safety glasses and gloves). Match drill speed and feed to the metal type and thickness; for harder metals reduce speed and use cutting fluid to extend the tool life. Inspect the bit before use and replace it if cutting edges are worn or damaged.