Hertel 2386639 Drill Bit Size 56 Hss 135 Degree Split Point

Product Description

The HERTEL 2386639 is a screw machine length drill bit designed for high-speed, close-tolerance drilling in metal fabrication, machining, and production environments. Built from high-speed steel with an oxide coating, this bit carries a wire gauge size 56 diameter of 0.0465 inches and a 135-degree split point that reduces walking and cutting pressure at entry. The shortened overall length of 1.375 inches improves rigidity in drill press and CNC applications where reduced deflection is critical. Right-hand spiral flutes evacuate chips efficiently, and the web-thinned, parallel web construction supports consistent performance across repetitive cycles. This bit is sold individually but is subject to a minimum order quantity of 12 units.

Screw machine length drill bits are standard tooling in production machining shops, tool rooms, and sheet metal operations. The compact length makes them well suited for use in turret lathes, gang drills, screw machines, and benchtop drill presses where a standard-length bit would flex or chatter. The 0.0465-inch diameter places this bit in the small-diameter range commonly used for pilot holes, through-holes in thin stock, and precision clearance holes in ferrous and non-ferrous metals. Licensed machinists and tool-and-die tradespeople are the primary installers of this tooling.

Key Features

• Wire gauge size 56 with 0.0465-inch decimal diameter for precise small-bore applications
• 135-degree split point reduces thrust force and minimizes drill walking on entry
• High-speed steel construction with oxide coating for improved wear resistance
• Screw machine length overall at 1.375 inches for added rigidity and reduced deflection
• Right-hand spiral flutes with 0.5-inch flute length for efficient chip evacuation
• Web-thinned parallel web reduces cutting resistance during through-hole drilling
• Straight-cylindrical shank fits standard drill chucks and collets without modification

Compatibility

Designed as a standard screw machine length drill bit for use in drill presses, turret lathes, CNC machining centers, and screw machines that accept a straight-cylindrical shank with 0.0465-inch diameter.

Installation Notes

Installation and tool changes should be performed with the machine powered down and the spindle fully stopped. Secure the straight shank in a properly sized drill chuck or collet and verify runout before beginning a production run. Cutting speed and feed rate should be selected based on workpiece material per standard machining reference tables. Operators should wear appropriate eye protection and ensure chip guards are in place during use.