1. Material: steel2. Purpose: ued for wood slotting milling cutter conversion head3. Strong and durable, not easy to deform4. Small and convenient, easy to carry5. Specification: 6mm+6.35mm+8mm6. Weight: 5 gramsSpecification: Package Weight One Package Weight 0.02kgs / 0.04lb One Package Size 5cm * 2cm * 2cm / 1.97inch * 0.79inch * 0.79inch Qty per Carton 500 Carton Weight 9.00kgs / 19.84lb Carton Size 39cm * 15cm * 15cm / 15.35inch * 5.91inch * 5.91inch Loading Container 20GP: 3038 cartons * 500 pcs = 1519000 pcs 40HQ: 7054 cartons * 500 pcs = 3527000 pcs