TheEarth auger machineAdopts standardized drill size. A comprehensive drill and tap size chart lists metric and imperial size drills and required tap sizes. There are also special drill bits that can create holes with non-circular cross-sections.

Adjustment of spindle speed: It is necessary to select the appropriate speed according to the diameter of the ground drill and the processing material. When adjusting, first stop the operation of the main shaft, open the cover, turn the pulley by hand, and hang the V-shaped belt on the small pulley, and then hang it on the large pulley until the V-shaped belt is hung on the appropriate belt.

Adjustment of the up and down, left and right positions of the worktable: first hold the worktable with the left hand, then loosen the locking handle with the right hand, and swing the worktable to move it down or up to the desired position, and then lock the handle.

Spindle feed adjustment position: The ground drill spindle feed is achieved by rotating the feed handle. Before drilling, the spindle should be raised and lowered to check if the work placement height is appropriate.ground drillThe worktable is circular and can be rotated around its cylindrical bed.

The metal casing of the manual ground drill must be grounded or zero-connected protection: the plastic casing should be prevented from bumping, knocking, and smashing, and should not be in contact with gasoline and other solvents.

When drilling with a manual ground drill, avoid using excessive force to prevent overloading the tool; if the speed decreases significantly, stabilize it immediately to reduce applied pressure; if the rotation suddenly stops, cut off power immediately.

When installing the drill bit, do not hit with a hammer or other metal products. When holding a power tool, you must hold the handle of the tool. Do not pull the flexible wire while moving the tool. Prevent the flexible wire from being scratched or cut, and being crushed, etc.

Smaller workpieces must be firmly fixed before being drilled, so as to ensure that the workpiece does not rotate with the drill bit during drilling and ensure the safety of the operator.

The working principle of Manual ground drillThe DTH hammer is similar to other rock drills. It involves rock drilling processes such as impact, rotation, flushing, and thrust, which fall under impact-rotation drilling. The key difference lies in the placement of the impactor on the front end of the drill pipe in the down-the-hole drilling rig. It plunges into the hole bottom and progresses continuously as the hole extends.

ZHEJIANG HENGYUE MACHINERY CO., LTD has been developing manual ground drill for many years, and is known as "the national brand leader in the Chinese ground drill industry". Therefore, customers can choose their products with confidence.