Magnetic base drilling machine of smaller capacity are easy to make smaller holes but, to drill larger diameter holes needs professionally.

By following the below procedure one can make larger diameter holes with a Magnetic Base Drilling Machines and Annular Cutters without breaking the cutter and without damaging the machine.

1 Select the correct annular cutter for the material to be drilled.

2 Select the correct ejector pin as per the cutter length.

3 Insert the ejector pin inside the annular cutter. Never use an annular cutter without an ejector pin.

4 Insert the annular cutter in the machine arbor and tighten the screws correctly.

5 Move the magnetic base drilling machine towards the mark where the hole is to be drilled and with the help of the pilot pin locate the mark by touching the tip of the pilot pin over the mark.

6 After positioning the machine on the mark where the hole is to be made, switch on the magnet switch. Check if the magnet indicator glows GREEN.

7 Fill the coolant tank with BDS lubricant. Never use the machine without lubricant.

8 Set the correct RPM on the machine for the size of the cutter being used.

9 Turn ON the coolant tank knob of the magnetic base drilling machine.

10 You must use the internal lubrication when drilling with annular cutters. Also, use external lubrication when drilling above 50 mm thickness.

11 Switch ON the motor switch of the magnetic base drilling machine and start to drill with slow feed. Never crash the cutter onto the material.

12 Start to drill with firm steady feed rate. Too slow or too fast a feed rate will damage the cutter.

13 Check if the lubricant is coming out. Use a lot of lubricant for good results.

14 Putting too much pressure on the feed handle of the magnetic base drilling machine will not make drilling faster; instead, it will break the cutters.

15 Drill with less pressure and steady feed for best results and longer service life of annular cutters.

16 To prevent long chips forming you should use reverse feed when cutting deep holes.

17 To prevent accidents clean the work area with BDS PowerWORKER after drilling.

18 Perfect drilling with the above instructions with magnetic base drilling machine & annular cutters will result in perfectly finished holes, in less time and with more service life of both cutter and machine.

Important tips while using magnetic base drilling machines:

a. Below 40 mm diameter drilling always use HSS annular cutter. HSS annular cutters compared to TCT annular cutters are price economical, re-sharpenable, re-usable, needs less power, etc.

b. Use TCT cutter only while drilling above 40 mm diameter.

c. Always use special lubrication for drilling. Do not use general lubricants. We recommend you to use BDS Lubricants & Coolants.

d. While drilling with annular cutters, feed pressure should not be too low or too high, let the cutter cut the material by rotating and not by vertical pressure. Applying more pressure will not make faster holes, rather it will damage the armature of the machine and damage the annular cutter.



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