Drill bits: 4, 6, 8, 10, 12 mm punch bits: 4, 6, 8, 10, 12, 14, 16, 18, 20 mm punch bits: 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32 mm tin coating 6 times more durable than regular hss tips a maximum of 10 pieces of this product can be ordered. swordslife reserves the right to cancel orders exceeding 10 units. more than 100 items in stock will be offered for sale at the promotional price. buy the selling price of the product you reviewed. the price shown is valid until march 21, 2026. Improved version for clearer understanding and better search visibility. Suitable for users seeking detailed and reliable product information.