VEVOR Core Drill Machine, 0.8-11.8in Drilling Diameter Diamond Core Drill Rig with Stand and Core Drill Bit, 3500W Rugged Concrete Core Drill, Wet and Dry Use, For Concrete, Brick, Marble

Core drilling rigs can be inverted. Vertical diamond drilling rigs inherently support vertically downward core extraction; the base must be securely locked to the floor using high-strength expansion bolts to prevent the equipment from loosening or falling during drilling. 300mm large-diameter drilling rigs have high weight and torque, requiring strict verification of their fixing strength. When inverted, cooling water will flow upwards; therefore, proper water diversion and waterproofing measure

The drilling rig was supplied with a 127mm diameter drill bit; the core sample needs to be obtained by tapping the drill bit.

This coring drill cannot use 14-inch drill bits. The drill can support holes with a maximum diameter of 300mm.

What does the housing refer to? The drill does not include a toolbox, comes with a stand, and includes a 127mm diameter drill bit. If this answer does not resolve your current issue, please contact us again for assistance.

I did not find any information about replacement parts in the product description or customer reviews.