CD 7-28 Manual Core Bit Retipping Machine

Product Tags:

CD 7-28 Manual Core Bit Retipping Machine

Our most sold model.
The CD 7-28 works without electrical power, without noise, without sparks, waste or scrap. Cuts off the worn end and, at the same time, makes notches for the new segments - with exact distance.

The indexing disc gives you full control of the number of segments
required and full freedom to manufacture the right bit for an efficient work.

The depth of the segment seat can be adjusted - from 0,5 mm just enough to indicate the positioning of the segment - up to a three-side brazing slot for safer drilling in difficult materials. Also good when the steel is worn very thin.

The CD 7-28 is very easy and fast to operate. A drill bit with diameter 100 mm (4”) is ready within a minute. Use our magnets for the brazing and the whole core bit is retipped within the next few minutes.


  • Core bit Ø 38 - 700 mm (1-1/2” - 28”)
  • Core bit length 50 mm (2”) - Any length with extensions
  • Max steel thickness approx. 3.2 mm (1/8”)

Recommended Products…

CD 7-28 Manual
CD 7-28 Height Extension +450mm
CD 7-28 Diameter Extension +300mm

Follow MACTOOL on Social Media!

Find us

Head Office (Cape Town)

Unit 6 Pennisi Park, No.3 Jig Ave, Montague Gardens


Unit 4 Hughes Industrial Park, Cnr Oscar & Romeo Rd, Hughes


Unit 1A, 44 Hillclimb Rd, Westmead


Head Office (Cape Town):

Tel: +27 21 552 8566


Tel: +27 11 823 1077


Tel: +27 31 350 4004
linkedin facebook pinterest youtube rss twitter instagram facebook-blank rss-blank linkedin-blank pinterest youtube twitter instagram