Dormer 5986873 | 3.90mm Diameter x 5.00mm Shank x 68.00mm Flute Length x 93.00mm OAL 4 Flute Bright/ST Coated HSS B903 Taper Pin Reamer

Taper pin hand reamer with straight flutes and a square drive, small end diameter 3.90mm with an overall length of 93mm, a flute length of 68mm and 5.26mm large end diameter, according to DIN 9 standard for reaming pin holes with a 1:50 taper into which 4.00mm taper pins will fit, HSS with bright-steam tempered finish for machining free machining, plain carbon and alloy steel, malleable cast-iron, wrought and cast aluminium and copper or copper alloys.