Accupro 4500246 Carbide Jobber Drill 6.60mm Tialn 140 Deg

Product Description

The ACCUPRO 4500246 is a solid carbide jobber-length drill bit designed for high-performance drilling in hard and abrasive materials. It measures 6.60 mm in diameter with a 140-degree split point and a TiAlN (titanium aluminum nitride) coating that improves heat resistance and extends tool life at elevated cutting speeds. The 91 mm overall length and 53 mm flute length place it in the standard jobber range. Two regular spiral flutes with R-thinned web geometry reduce entry force and improve chip evacuation. Coolant-through capability makes it suitable for deep-hole applications where heat buildup is a concern. Machinists and tool-and-die professionals install this drill on CNC machining centers and manual drilling equipment.

This drill is suited for use in metalworking operations requiring precision hole location and clean exit geometry. The 140-degree point angle and proprietary point type provide self-centering action and reduce walking on hard workpiece surfaces. The straight cylindrical shank at 8 mm diameter is compatible with standard drill chucks and collet-style toolholders. Typical applications include production machining of steel alloys, stainless steel, cast iron, and similar hard metals where a high-performance carbide tool is required over standard HSS options.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard materials
• TiAlN coating improves thermal resistance and extends tool life at high cutting speeds
• 140-degree point angle with R-thinned web reduces thrust force and improves centering
• Coolant-through design supports deep-hole drilling and chip flushing
• Regular spiral flutes provide consistent chip evacuation in production environments
• Straight cylindrical shank fits standard chucks and collet holders without adapters

Compatibility

Designed as a high-performance jobber drill for use in CNC machining centers and manual drilling equipment accepting an 8 mm straight cylindrical shank; dimensionally specified to DIN standards within the 6.00 mm to 7.00 mm drill bit size range.

Installation Notes

Installation should be performed by a qualified machinist following established toolholding procedures for carbide drill bits. Ensure the spindle is fully stopped and the machine is in a safe state before inserting or removing the tool. Carbide tooling is brittle and should not be subjected to side loading or impact that would be acceptable with HSS equivalents. Verify coolant-through lines are clear and delivering adequate flow before initiating deep-hole drilling cycles.