| Loại | Manufacturer |
|---|---|
| Trang web | https://www.oliverinstrument.com/ |
| Địa chỉ | 1111 E. Beecher St. P.O. Box 189 Adrian, MI USA 49221 |
 |
Oliver of Adrian has been manufacturing quality drill point grinding equipment for over 100 years. We offer precision drill grinders for small bits (Model 21HD), all the way to very large drill bits up to 4" (102mm) in diameter with our flagship machine, the Oliver 600.