A hand screwdriver with a bearing for 3D printing.For 1/4 bits.To assemble, you need to buy one bearing and one neodymium magnet.Bearing size 61800 (10x19x5 mm ) or 63800 (10x19x7 mm ).A round magnet with dimensions: diameter from 4 to 6 mm, height (thickness) from 1 to 3 mm. The ideal size is 6 mm in diameter and 2 mm in thickness.The magnet is attached with glue.The bearing is pressed in, but glue or thread lock can be used if necessary.

A hand screwdriver with a bearing for 3D printing.For 1/4 bits.To assemble, you need to buy one bearing and one neodymium magnet.Bearing size 61800 (10x19x5 mm ) or 63800 (10x19x7 mm ).A round magnet with dimensions: diameter from 4 to 6 mm, height (thickness) from 1 to 3 mm. The ideal size is 6 mm in diameter and 2 mm in thickness.The magnet is attached with glue.The bearing is pressed in, but glue or thread lock can be used if necessary.