7 mm 8 mm 3/8 Inch 10 mm Cutter Shafts Pen Barrel Trimmer Kit

· Pen barrel trimming system: the package includes 4 pieces of pilot cutter shafts in different sizes, 1 cutting head, 1 sleeve adapter and 1 hex key wrench, which can meet the requirements of most pen polishing

·Size: the pilot shafts contain the sizes measures about 6.2 mm (Suitable for 7mm pen tube), 7.2 mm (suitable for 8mm pen tube）, 8.6mm (suitable for 9.5 mm (3/8 inch) pen tube,  9.1mm (suitable for 10mm pen tube)  in diameter; The cutting head measures about 19 mm (3/4 inch) in external diameter and 6.5 mm in inner diameter, and thes pilot shaft over 7 mm to keep it in the center position

· Quality material: the cutter shafts are made of solid carbon steel, which are sturdy, durable with nice cutting strength for maximum drilling, and the sleeve adapter is made of brass; The pen barrel trimmer kit provides a practical and convenient tool for your pen blank preparation process

· Easy to clean: the cutting shafts can easily clean and remove the extra glue, bits of wood, impurities, etc. from the tubes and make the tube cut flatter; Please make sure the cutting shafts mount into a drilling or lathe chuck correctly

· Various occasions: the pilot shafts are suitable for mounting into a drill chuck, lathe chuck, drill press or hand drill, and they are helpful to polish the pen, mill the hole and clean the inner tube with the tiny size