Hertel SZ0020CE Abrasive Bur Cylinder End Cut 1/4 in Shank

Product Description

The HERTEL SZ0020CE is a solid carbide abrasive bur with a cylinder-with-end-cut head geometry, designed for precision material removal in tight and flat-bottomed cavities. Built to SB-12 industry specification, it features a double-cut tooth pattern that clears chips efficiently while delivering a smooth finish on ferrous and non-ferrous metals, plastics, and composites. The cutting head measures 0.125 inches in diameter with a 0.625-inch length of cut, mounted on a 0.25-inch shank. Machinists, die grinders operators, and tool-and-die technicians rely on this style of bur for deburring, porting, and surface blending work on production and repair applications.

This bur is suited for use in pneumatic or electric die grinders, flexible-shaft machines, and CNC tool-change setups that accept a 0.25-inch shank. The cylinder-with-end-cut profile allows it to work both on the side and the flat end of the head, making it practical for squaring shoulders, enlarging slots, and deburring drilled hole edges. It is a common choice in metalworking shops, maintenance and repair operations, and precision manufacturing environments where consistent stock removal and surface quality are required in a single pass.

Key Features

• SB-12 industry specification cylinder-with-end-cut head geometry for side and end cutting in one tool
• Double-cut tooth pattern for fast stock removal and reduced chatter on hard materials
• Solid carbide construction for durability and rigidity at high rotational speeds
• Uncoated head — no coating thickness to affect dimensional accuracy in tight tolerances
• 0.125-inch cutting diameter with 0.625-inch length of cut for work in small bores and cavities
• 0.25-inch shank fits standard die grinder collets without adapters

Compatibility

Designed as an OEM-style replacement and standard-production abrasive bur compatible with die grinders and rotary tool setups accepting a 0.25-inch shank collet.

Installation Notes

Installation and use of rotary carbide burs should be performed by qualified machinists or tooling technicians familiar with die grinder operation and safe RPM limits for the bur diameter. Always confirm the tool holder collet is clean, undamaged, and sized to 0.25 inches before seating the shank. Power down and de-energize the grinder before changing burs. Wear appropriate eye protection and secure the workpiece before running the tool.