Hertel SZ20009C Abrasive Bur Cone 1/8 Inch Shank SM-43

Product Description

The HERTEL SZ20009C is a solid carbide abrasive bur with a cone-with-point-end head geometry, manufactured to SM-43 industry specification. It features a 1/8 inch shank diameter and a 1/8 inch cutting diameter, with a 5/8 inch length of cut. The single-cut tooth style provides controlled material removal with reduced heat buildup, making it well suited for deburring, porting, shaping, and surface finishing operations on metal, hardened steel, and hard alloys. Licensed machinists, toolmakers, die makers, and maintenance technicians are the primary installers and operators of this bur.

This bur is used in die grinding, pneumatic rotary tool, and flexible shaft applications across industrial, manufacturing, and maintenance environments. The cone-with-point-end profile is particularly useful for working inside angled cavities, chamfering edges, countersinking, and cleaning up weld joints where access is restricted. It is appropriate for both production shop and field maintenance use wherever controlled, fine stock removal is required on hard materials.

Key Features

• Solid carbide head construction provides hardness and wear resistance for extended tool life on hard materials
• Cone with point end geometry allows access to angled cavities, countersinks, and restricted work areas
• Single cut tooth style delivers smooth finish and controlled chip load
• 5/8 inch length of cut gives adequate reach for most deburring and porting tasks
• 1/8 inch shank fits standard die grinder and rotary tool collets without adapters
• Uncoated head finish maintains dimensional accuracy and is suitable for use on a wide range of ferrous and non-ferrous metals

Compatibility

Designed for use in standard 1/8 inch collet die grinders, pneumatic rotary tools, and flexible shaft machines that accept SM-43 specification carbide burs.

Installation Notes

This bur is installed and operated by machinists, toolmakers, or maintenance technicians using die grinders or rotary tools. Before installing or removing the bur, ensure the tool is fully powered off and disconnected from the air supply or electrical source. Seat the shank fully into the collet and tighten the collet nut securely before operation. Always wear appropriate eye protection and follow applicable shop safety protocols when operating rotary cutting tools at speed.