Cle-line C23464 Screw Machine Drill Bit 1/8 in Hss

Product Description

The CLE-LINE C23464 is a screw machine length drill bit designed for fast, accurate drilling in ferrous metals including cast iron and steel. Built from high-speed steel with a coated finish, this bit features a 135-degree split point that reduces walking and lowers the thrust needed to start a hole. The stubby 1.875-inch overall length gives it added rigidity over jobber-length bits, making it well suited to production drilling and tight-clearance applications. Two spiral flutes with a tapered web and web-thinned geometry help evacuate chips cleanly during high-cycle use. The straight cylindrical shank measures 0.125 inches in diameter and 1 inch in length, fitting standard drill chucks without an adapter. This is a heavy-duty grade bit built to ASME B94.11M tolerances.

Screw machine length bits are a staple in machine shop environments, automated drilling fixtures, and benchtop drill press work where a shorter, stiffer bit reduces deflection and improves hole accuracy. The C23464 is appropriate for right-hand drilling operations on cast iron and steel workpieces. The 0.125-inch diameter and compact overall length make it a common choice for production runs, tap-drill operations, and precision mechanical assembly where bit flex is a liability.

Key Features

• 135-degree split point reduces center-punch dependency and lowers entry thrust
• Web-thinned, tapered web construction improves chip clearance and cutting efficiency
• Screw machine length body (1.875 inches OAL) provides greater rigidity than jobber-length bits
• High-speed steel with coated finish extends edge life in ferrous metal drilling
• Diameter tolerance held to +0.0000 to -0.0005 inches per ASME B94.11M
• Straight cylindrical shank fits standard drill chucks without modification

Compatibility

Designed as a screw machine length replacement or production drill bit for right-hand drilling operations on cast iron and steel workpieces, compatible with any drill press, CNC turret, or handheld drill chuck accepting a 0.125-inch straight shank.

Installation Notes

Installation and use should be performed by machinists or qualified trade personnel following applicable shop safety procedures. Secure the shank fully in the chuck and verify runout before drilling. Always power down or de-energize the machine before changing bits. Do not exceed the rated speed range for the workpiece material or bit diameter, and use appropriate cutting fluid when drilling steel to preserve edge life.