![Brunner & Lay 7/8in x 4-1/4in x 24in H-Thread Drill Steel Brunner & Lay 7/8in x 4-1/4in x 24in H-Thread Drill Steel](https://cdn11.bigcommerce.com/s-wuv9yzerrh/images/stencil/500x659/products/1112/1504/Brunner%26Lay_E12024H_Image1__58637.1712719430.jpg?c=1)
Details
Full size tungsten carbide inserts, which resist gauge wear and abrasion, makes this a very popular item. The design allows for multiple sharpenings and continued reuse until the inserts are consumed.
- Drive bit type: H-threaded
- Standard outside diameter: 1-3/8", 1-5/8", 1-3/4", 2", 2-1/4", 2-1/2"
- Material: Tungsten carbide (insert)