Accupro 4500155 Jobber Drill 3.70mm Solid Carbide Tialn

Product Description

The ACCUPRO 4500155 is a solid carbide jobber-length drill bit designed for high-performance drilling in hard and abrasive materials. Ground to a 140-degree split point with R-thinned web geometry, it reduces thrust and improves self-centering at entry. The TiAlN coating provides thermal resistance and extended tool life in dry or minimal-lubrication cutting conditions. At 3.70 mm in diameter with a 66 mm overall length, this is a compact, precision ground tool suited to CNC machining centers, drill presses, and production drilling operations. It is sold individually and is appropriate for machinists, tool and die tradespeople, and production floor operators working in steel, cast iron, stainless, and similar materials.

This drill bit is suited for production and maintenance machining applications requiring precise, repeatable hole quality in ferrous and non-ferrous metals. The 5xD flute-to-diameter ratio supports chip evacuation in moderate-depth holes. Coolant-through capability allows internal coolant delivery directly to the cutting zone, making it effective in CNC setups where through-spindle coolant is available. The straight cylindrical shank with a 6 mm shank diameter seats directly in standard ER or Weldon-style collet chucks without adaptation.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard materials
• TiAlN coating for thermal protection and extended tool life in dry or semi-dry cutting
• 140-degree proprietary split point reduces entry thrust and improves self-centering
• R-thinned web reduces cutting resistance and heat generation at the chisel edge
• Coolant-through design supports internal coolant delivery for deep-hole or high-feed applications
• Regular spiral flute with 5xD ratio for consistent chip evacuation

Compatibility

Designed as an OEM-style jobber drill for use in standard CNC machining centers and drill presses accepting a 6 mm straight cylindrical shank; conforms to DIN specification standards.

Installation Notes

Installation and tool changes should be performed with the machine fully stopped and locked out per standard LOTO procedures. Seat the straight shank fully and evenly in the collet or chuck before tightening to manufacturer-specified torque for the chuck type in use. Verify runout with a dial indicator before production use, especially in tight-tolerance applications. When using coolant-through capability, confirm that spindle coolant pressure and flow rate are compatible with the drill geometry and workpiece material.