Borer called concrete drill special design, cutting a portion of which is made of alloys, which are based on tungsten and titanium. The drill is designed to drill such a construction brick, Concrete, stone and marble. Properly sharpened drill sds - the key to fast and cost of drilling. We drill two functions simultaneously:
- He serves as a twist drill.
- Splits material as a chisel.
In most cases, the concrete drill rod are soldered to the tip of the carbide material.
Unlike drills for concrete and stone, sds plus drill is used when working with hammer. On the tool a force not only in the plane of rotation, but also the impact force. Bur works in very harsh conditions.
In the process, any cutting tool blunts, including drills and drills. Tools heat up, drilling time increases.
The perforator drill tests also the impact load and the question arises, how to grind concrete drill bit.
A few tips in the drilling process, allows the prolongation of the drill work on concrete:
- Always keep the heating tool, preventing overheating.
- The heated auger drill or not a sharp dip in cool water.
- When drilling tiles, Do not use the punch mode.
Tips for sharpening drill at home
Before learning, how to sharpen a drill or concrete drill bit, it is necessary to clarify the basic features of the design tool.
The working edge of the drill is formed by conversion of the front and rear faces. The angle between the front edge and the axis of the drill is 30 °. At the corner between the rear face and the axis of the drill bit value is 60 °.
Blue borax edges should form an angle of 120 °.
Argued, that drill sds + Concrete does not require sharpening and replaced by a new one after the wear. this version, particularly strongly support workers construction tool shops.
But learning how to properly sharpen a drill or drill, you make, that drill work you can greatly extend the life.
Sharpening drill is to specify the desired shape of the cutting edge of the drill. We drill sharpening, and front and rear faces.
When introducing a drill material should work only the cutting edge of the tool, and do not touch the surface of the treated drill Hatchback.
The rear surface of the drill at any given drilling operation must have a gap with the treated surface.
Otherwise, tool not only bad drills, but also quickly warms, blunts, destroyed.
Important tips on how to properly sharpen metal drill.
Methods for sharpening drill bits for concrete
How to sharpen a drill to punch and how? Win is very strong alloy and a conventional sandpaper with a stone can not be high-quality sharpening.
Correctly sharpened drill or auger for concrete can only be in the diamond or abrasive wheels made of silicon carbide or CBN.Highly recommended to buy a diamond grinding wheel for sharpening his tools for long enough and the tool is sharp.
The procedure works
The circle must be installed on grinding machines. Grinding on grinding machines is carried out in strict compliance with safety. Thrust bearing is installed with minimum clearance, the work is done without gloves, special eye protection shield or goggles.
Before grinding necessary to correct the peripheral surface of the circle using CBN insert, ie to align the grinding stone surface.
Before proceeding to the answer to question, how to sharpen a drill for concrete at home, consider in detail the sharpening process.
We perform standard sharpening drills on concrete.
securing device, We laid on him the drill, summing the surface of the grinding stone so, that the cutting edge is parallel to the plane of the grinding stone.
Sharpen both edges, controlling their symmetry to the light and the angle between them of 120 °.
We turn to the sharpening of the leading edges
Drill falls on the device, providing an angle of 30 °. The drill bit is supplied to the sharpened stone plane at an angle of 30 ° and front face sharpened.
Drill turned by 180 °, sharpen, and a second front face.
Now it is necessary to bring to drill sharpened surface of the stone at an angle of 60 °. This is achieved by laying the drill to a different part of the device.
Sharpening rear faces made in a similar manner.
If, after you have turned sharpening the cutting edges of different sizes, sharpening should be repeated in full.
To fully understand the sharpening process in the sharpening machine line videos.
Since all grinding machines clearly. And you can use the overage diamond blade for grinders.
But, to sharpen drill on Bulgarian, the last to be carefully fix.
To provide high-quality drill sharpening machine must be equipped with glide, which should be based drill while sharpening. Thrust bearing can be a piece of corner, firmly attached to the grinder or table.
If the diamond blade does not get in the grinder, then it's easy to fix, not performing complex manipulations, shown in a video on sharpening drill.
When honing is necessary to make the rear surface of the drill desired shape.
We drill to sharpen the cutting edges, and the rear surface is removed. Any rear surface of the drill point should not touch the material being processed.
A few words about the devices
Adaptations can be made not only from a block of wood, but from the corner.
The main task is, to sharpen a drill bit is supplied to the sharpening plane with the right angles.
by the way, adaptation of the corner are more accurate, robust and durable.
When you sharpen a not very critical angles aging. But the symmetry and size of the cutting edges should be observed.
I wish you success! dare.