Through-hole minus screwdriver Shaft length: approximately 13cm Tip width: 8mm The square shaft allows for powerful tightening with a spanner or similar tool. The square shaft allows for powerful tightening with a spanner or similar tool. The oval grip provides a good grip for applying force. The through-hole design allows for hammering with a hammer. This is a product from my grandfather's shop. The item is apparently quite good quality, but we are offering it at a reduced price due to aging and wear.