| Description | Coronet Vacuum Trephine - All metal, ergonomic design and ultra sharp blade with cross hairs. Available in a variety of sizes from 6.50mm to 9.50mm. | Long Handled Trephine in variety of sizes from 6.50mm to 9.50mm. | X-Hair Trephines in variety of sizes from 6.00mm to 9.50mm. |