Chicago-latrobe 48223 Screw Machine Drill Bit 23/64 in

Product Description

The CHICAGO-LATROBE 48223 is a screw machine length drill bit designed for heavy-duty drilling in cast iron and steel. Built from high speed steel (HSS) with a coated finish, it delivers consistent performance in demanding shop and field applications. The 135-degree split point reduces walking and requires no center punch on flat surfaces. A web-thinned, parallel web configuration improves chip evacuation and reduces thrust during penetration. At 23/64 inch (0.3594 inches) in diameter, with a total length of 3-1/16 inches and a flute length of 1-3/4 inches, this bit fits standard drill chucks and is suited for machinists, pipefitters, and fabricators working on structural steel and cast iron components.

The 48223 is configured for screw machine length work, meaning a shorter overall body than jobber-length bits for added rigidity in tight spaces or machine tool applications. The straight-cylindrical shank seats securely in drill press chucks, CNC turrets, and hand-held power drills. Primary workpiece materials are cast iron and steel, making this bit a practical choice for HVAC bracket fabrication, pipe hanger installation, electrical panel knockouts, and general metal fab work. The right-hand spiral flute design clears chips upward and away from the cut zone during continuous operation.

Key Features

• 135-degree split point reduces walking and eliminates need for center punch on flat stock
• Web-thinned parallel web lowers drilling thrust and improves chip flow
• Screw machine length body provides added rigidity over jobber-length bits
• High speed steel construction with coated finish for extended tool life in steel and cast iron
• Right-hand, 2-flute regular spiral design compatible with standard drill chucks and CNC turrets
• Diameter tolerance held to +0.0000 to -0.0010 inches for precise hole sizing

Compatibility

Designed for use in cast iron and steel workpieces. Fits straight-cylindrical chuck applications including drill presses, hand drills, and CNC turret setups. Conforms to NAS 907 specification under NAS designation, Series 2159, and meets ISO standards.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists, fabricators, or trade professionals familiar with metal drilling operations. Secure the workpiece firmly before drilling and ensure the drill chuck is fully tightened on the straight-cylindrical shank. Use cutting fluid or coolant when drilling through hardened steel to preserve bit life, noting this bit does not include a coolant-through channel. Follow applicable shop safety protocols and wear appropriate eye protection during operation.