Production Suite pen, pen rotatable mandrel and trimmed package, wood spindle # 2 Morse tapered shank, and a grinding belt 7 mm drill bit, for the production of woodworking lathe partsPen pen on the trim set may be removed The dry glue can also remove impurities from the nib and help you easily insert the refill. The pen-turning mandrel helps to eliminate vibrations that occur when rotating the blank, and the mandrel is longer than necessary.This fountain pen making kit includes a barrel trimmer set and a nib turning mandrel with a 7mm drill bit, the set comes with roller trimmers and drill bits with different sized shafts to suit your woodworking needs and help you work more efficiently. cartridge dimensions:total length: 8 inchesin diameter: 6 mm / 0.24 inchespen shaving dimensions:guide shaft: 7 mm (0.28 inches), 8 mm (0.32 inch), 9.5 mm (3/8 inch), 10 mm (0.39 inch) diametercutting heads: an outer diameter of 19 mm (3/4 inch), an inner diameter of 6 mm (0.24 inch)Colour:silverMaterial:Metal Package Contents:1 set x pen blanks Only the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.