기능

• Steel double-hole excavator. Hole Diameter 135 mm
• For downhole digging work where vertical holes are dug for erecting poles, piles, etc.
• A small type of digging in a narrow place. For planting trees.
• Carbon steel equivalent to S45C is used for the head, and heat treatment is carried out for quenching (become stronger and more resistant to wear) and tempering (increase elasticity). (Double Type Shovel)