Drill bit Facom WIERTLO NWKA FI 11.00 94/142 mm model 222A.T11

Facom WIERTLO NWKA drill bit model 222A.T11 with a nominal diameter of 11.00 mm and combined overall/working lengths of 94/142 mm is designed for drilling tasks that require a precise 11 mm hole and an extended working reach. The straight shank geometry makes this drill bit compatible with standard chucks and tool holders that accept straight-shank bits of these dimensions. It is intended for use in metalworking, mechanical maintenance and assembly where a reliable, standard-dimension twist drill is required.

Advantages

This Facom drill bit provides consistent hole diameter and stable cutting performance when used with appropriate drilling machines. The straight shank ensures secure mounting in chucks, reducing runout and improving hole accuracy. The specified overall and working lengths give versatility when accessing deeper or recessed drilling positions while maintaining control over chip evacuation and drilling stability.

Suitable for

• Drilling through mild and hardened metals with required 11.00 mm diameter
• Mechanical maintenance and repair tasks in workshops and service centers
• Assembly operations requiring precise clearance or mounting holes
• Machine-shop operations where standard straight-shank bits are used

Key specifications

• Nominal diameter: 11.00 mm
• Overall length: 142 mm
• Working (cutting) length: 94 mm
• Straight shank design compatible with standard chucks
• General purpose twist drill geometry suitable for metalworking

How to use

Select appropriate cutting speed and feed for the workpiece material and secure the drill bit in a compatible chuck or tool holder. Use cutting fluid or coolant when drilling metals to extend tool life and improve hole finish. Start drilling at low speed to establish a pilot and then increase speed and feed according to material and machine recommendations. Clear chips regularly and avoid excessive side loads to prevent breakage of the 11.00 mm drill.

Usage recommendations

Inspect the drill bit for wear or damage before use. Match drilling speed, feed, and coolant to the substrate and machine capability. For deep or blind holes, use pecking cycles or intermittent retraction to evacuate chips and reduce heat build-up. Replace the bit when wear affects hole accuracy or increases required cutting forces.