Features: 1.Made of high quality carbon steel, it is very strong, resistant to impact and wear. 2.Firewood drill bit comes with three kind of drill sticks(hex+square+round), meet your needs. 3.Efficient tool for cutting and opening logs to quickly separate logs and increase productivity. 4.The coating reduces friction and heat through heat treatment, making cutting easier and more durable. 5.Easy to install, no complicated tools required, convenient to use, save time and effort. Specification: Item Type: Firewood Drill Bit Material: High speed steel Purpose: Chopping wood and firewood 1. Round Drill Stick suitable for splitting drill bits for electric hammers with two pits and two grooves with round shank 2. Hex Drill Stick suitable for splitting drill bits for triangular socket electric drills 3. Square Drill Stick suitable for splitting drill bits for square handle four-pit shank electric hammers Compatible models: Square handle electric hammer: electric hammer, wood splitting, suitable for square handle joints Round shank impact drill: electric hammer, wood splitter, suitable for round shank joints Electric hammer with hex handle: electric hammer, wood splitter, suitable for hex handle joint