Accupro 4500250 Solid Carbide Jobber Drill 7.10 Mm

Product Description

The ACCUPRO 4500250 is a solid carbide jobber-length drill bit with a TiAlN coating, designed for high-performance drilling in demanding metalworking applications. It measures 7.10 mm (0.2795 inches) in diameter with an overall length of 91.00 mm (3.5827 inches) and a 140-degree split point angle. The TiAlN coating extends tool life by reducing heat buildup and improving hardness at elevated cutting temperatures. With two regular spiral flutes and a straight cylindrical shank, this drill is built for consistent chip evacuation and precise, repeatable hole quality. Machinists and toolroom professionals working on production or maintenance operations rely on this grade of carbide drill for tough ferrous and stainless materials.

This drill bit is rated for primary use in stainless steel and is suited for CNC machining centers, drill presses, and manual mills where rigid tool holding and consistent feed rates are maintained. The 5xD flute-to-diameter ratio provides the flute length needed for moderate-depth holes without sacrificing rigidity. Coolant-through capability makes it well matched to high-speed wet-cutting operations on stainless steel, hardened alloys, and similar work materials where heat management is critical. It conforms to DIN specification standards for jobber drill geometry.

Key Features

• Solid carbide construction for high hardness and wear resistance in demanding materials
• TiAlN coating reduces friction and extends cutting life at elevated temperatures
• 140-degree proprietary split point reduces walking and cutting force at entry
• Coolant-through design supports high-speed wet cutting in stainless steel and alloys
• R-thinned web for improved chip flow and reduced thrust force
• Right-hand cut, two-flute regular spiral geometry for consistent chip evacuation
• Straight cylindrical shank fits standard drill chucks and collet systems

Compatibility

Designed as an OEM-style replacement or direct-use jobber drill for CNC machining centers and drill press setups requiring a 7.10 mm solid carbide drill with a straight shank and TiAlN coating, conforming to DIN jobber-length specification standards.

Installation Notes

Installation and operation should be performed by qualified machinists familiar with cutting tool setup and machine tool operation. Secure the shank fully in a collet or drill chuck rated for the shank diameter before use. Verify spindle speed and feed rate are appropriate for the workpiece material and drill diameter before cutting. Do not operate without proper chip and coolant management in place, particularly when drilling stainless steel or other work-hardening alloys.