FANAR solid carbide drill bit WDG, diameter 6.80 mm, M8 shank, BLUE CUT coating, model E.1619.1.M08

FANAR solid carbide drill bit WDG with a 6.80 mm diameter and an M8 shank is a precision tool intended for industrial metalworking and machine-tool applications. The flute geometry and full carbide construction provide rigidity and repeatable hole quality, while the BLUE CUT coating increases surface hardness and resistance to abrasion. This model is designed for drilling accurate holes in hard and abrasive materials where edge stability and long tool life are priorities.

Advantages

The solid carbide construction ensures high stiffness and dimensional stability under cutting forces, reducing runout and improving concentricity. The BLUE CUT coating enhances wear resistance and reduces built-up edge formation, extending tool life in demanding operations. The M8 shank provides secure mounting in compatible drill chucks and fixtures, enabling consistent repeatability in production environments.

Suitable for

• Precision drilling in hardened steels and alloyed metal parts
• Use in CNC machines, drilling machines, and production fixtures
• Operations requiring tight hole tolerances and good surface finish
• Short to medium length drilling where stiffness and tool life are required

When it may not be suitable

This solid carbide drill is not ideal for general-purpose woodworking or non-metal materials where carbide and specialized coatings are unnecessary. It may also be less suitable for deep-hole drilling beyond the tool’s flute length or for operations that require flexible or indexable tooling under heavy interrupted cuts where different geometries or toolholders are preferred.

Key specifications

• Cutting diameter: 6.80 mm
• Shank type: M8 threaded shank
• Material: solid carbide body
• Coating: BLUE CUT surface treatment for increased hardness and wear resistance
• Intended application: precision metal drilling

How to use

Secure the M8 shank properly in a compatible chuck or holder, ensuring concentric clamping to minimize runout. Select feed and speed appropriate to the workpiece material and machine rigidity; use cutting data recommended for solid carbide drills with a similar coating for best results. Apply adequate coolant or cutting fluid when machining steels and alloyed materials to control temperature and chip evacuation. Retract occasionally to clear chips in deeper holes and inspect hole quality during production to maintain dimensional conformity.

What to consider before purchase

• Compatibility of the M8 shank with your drill chuck or toolholder
• Suitability of solid carbide and BLUE CUT coating for the materials you plan to machine
• Required flute length relative to the depth of the holes you need to drill
• Machine rigidity and available spindle speeds suitable for carbide tooling

Usage recommendations

For consistent performance, use appropriate speeds and feeds for carbide drills, apply coolant when machining steels, ensure correct clamping of the M8 shank, and replace the tool when cutting edges show wear that affects hole tolerance or surface finish.