Kennametal 4148848 Drill Bit Size 38 Solid Carbide

Product Description

The KENNAMETAL 4148848 is a screw machine length (stub) drill bit designed for precision hole-making in demanding production environments. Built from solid carbide and finished with a TiN tip coating, this bit delivers extended tool life and consistent performance in ferrous and non-ferrous materials. It features a 140-degree standard point angle for self-centering entry and reduced thrust force, making it well-suited for high-volume drilling operations. The two-flute, regular spiral design channels chips efficiently out of the hole. Overall length is 2.2835 inches with a flute length of 0.6693 inches. Installation is handled by machinists and CNC operators working in metalworking and fabrication settings.

This drill bit is intended for use in screw machine operations, CNC machining centers, and production drilling applications where tight tolerances and repeatable performance are required. The straight cylindrical shank fits standard drill chucks and collets sized for a 0.1575-inch shank diameter. The stub-length body provides added rigidity compared to jobber-length bits, reducing deflection during high-feed drilling in short-hole applications. Coolant-through capability supports high-speed machining with internal coolant delivery for improved chip evacuation and tool life.

Key Features

• Solid carbide construction for high hardness and wear resistance in production drilling
• TiN tip coating reduces friction and extends cutting edge life
• 140-degree point angle promotes accurate self-centering and lowers entry thrust
• Coolant-through design supports internal coolant delivery for chip management
• Stub length body increases rigidity and minimizes deflection in short-hole drilling
• Conforms to DIN 6537K specification for dimensional consistency

Compatibility

Designed as an OEM-style replacement or direct-fit drill bit for use in standard drill chucks and collets accepting a straight cylindrical shank; part of the KENNAMETAL Series B051A-CPG. Suitable for wire gauge size 38 applications with a decimal inch diameter of 0.1015.

Installation Notes

Installation is performed by machinists or CNC operators. Ensure the machine spindle is fully stopped and the collet or chuck is de-energized before inserting or removing the bit. Verify chuck or collet size matches the 0.1575-inch shank diameter before securing. When using the coolant-through feature, confirm the machine tool has internal coolant capability and appropriate pressure ratings before initiating a cut.