This air-operated rotary pen with air hose is multifunctional and suitable for sanding, grinding, polishing, deburring, drilling, engraving and more by using high-speed rotation of various accessories prepared by yourself. 2 collets and adjustable rotation speed allow more applications. Portable and compact, easy to carry with the plastic box. Features: Pneumatic die grinder pen with 2 collets (2.38mm and 3mm) can be widely used in mould, car, metal, wood and more. Multifunction, suitable for sanding, grinding, polishing, deburring, drilling, engraving and more working needs. 65000rpm no load speed, stepless speed regulation; large torque provides high working efficiency. With triple bearing structure, thick and hard air cylinder, and alloy rotor; precision assembly, low vibration, superior performance. Non-slip handle, comfortable to hold. 1/4" air inlet, with 120cm/110cm long air hose for flexible use. Compact, lightweight and portable, one hand easy operation. Easy to carry with the plastic box. Specifications: Model: A / B (Optional) Model A: Grinding Pen Color: Light Gold Grinding Pen Size: 140 * 18 mm / 5.51 * 0.71 inch Grinding Pen Weight: 143g / 5.04oz Air Hose Color: Blue Air Hose Size: 120cm / 47.24 inch Model B: Grinding Pen Color: Black Grinding Pen Size: 135 * 16 mm / 5.31 * 0.63 inch Grinding Pen Weight: 100g / 3.53oz Air Hose Color: Black Air Hose Size: 110cm / 43.3inch Common: Material: Metal Collet Chuck Size: 2.38mm & 3mm Speed: 58000rpm & 65000rpm Air Inlet Thearc: 1/4 in Working Pressure: 0.4~0.6 Mpa Package Size: 24.3 * 15.4 * 4.2 cm / 9.57 * 6.06 * 1.65 inch Package Weight: Model A: 534g / 18.84oz; Model B: 480g / 16.93oz Package List: 1 * Pneumatic Grinding Pen 1 * Air Hose 2 * Chuck 2 * Wrench 10 * Grinding Head / 12 * Grinding Head 1 * Bottle 1 * User Manual (English) Many Questions about Services Are As Follows: 1.How many orders can you handle per day? we are a large company in Shenzhen,China,with a large warehouse that can handle large orders everyday.We send out countless parcels everyday.We can guarantee the order you request. 2.How fast can you process orders? We will arrange shipment as soon as possible after you pay the order.Priority delivery for order 3.Could you ship order without any receipts,invoices and promotional offer inside the package? Absolutely!No invoices,receipts,promotional offer if you leave notes on the order(if you want,we can provide.) 4.If you need other products? We can provide most products you need as much as possible1 If you have any other questions,please feel free to contact us. We are very grateful to cooperate with you. 5.We can support CSV/Excel File . 6.There is no limited stock to fulfill the orders on a daily basis