ZB50/80 Cutter Grinder

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MODEL ZB-50N (DUAL CAM) ZB80
Drill Size (¯2.5mm-¯51mm) straight or taper shank (1,2,3,4,5,6 flute) ¯4mm-¯80mm(1,2,3,4,5,6 flute)
Point Angles 40º-180º 40º-180º
Clearance angle 0º-18º 0º-18º
Motor ½ hp single or 3 phase totally enclosed fan cooled 1 ½ hp
Grinding Wheels Main wheel 7” x 1 ¼” x 1 ¼” Main wheel(180mm x 50mm x 31.75mm)
(180mm x 32mm x 31.75mm)
Point thinning dish wheel Point thinning dish wheel
6 5/8”x7/8”x1 1/4”
(165mm x 21mm x 31.75mm) (165mm x 21mm x 31.75mm)
Grinding the End of End Mills 2,3,4,6,12 flute 2,3,4,6,12 flute
Net Weight 300 kgs 380 kgs
Dimensions 970mm x 910mm x1600mm 1090mm x 1120mm x 1650mm

Simple to operate. Unskilled operators can quickly learn to produce perfect drill points. Set up and grinding is fast and the web can be thinned in a few seconds.

Accurate. Rugged construction and precision components ensure accuracy and repeatability over many years. Heavy duty compound slides and one-piece cast iron base increase rigidity and minimise vibration. The workhead incorporates precision needle roller and thrust bearings, while the main chuck spindle utilises a rotalin bearing giving less than 0.005 mm deflection. The six-jaw chuck accurately centres the drill to ensure each cutting lip is equally ground for both length and angle to develop a precision point.

Versatile. A wide range of points can be ground: Right-hand and left-hand drills with point angles between 40o and 180o, standard, centre drills, carbide drills, step and subland drills, taps and reamers. Also a number of NC self-centre points can be ground, including split, four-facet and spiral. Cutting lips can also be corrected.


  • 6 Jaw Self-Centering Chuck.
  • Grinding Wheel (recessed one side)
  • “Dish” Grinding Wheel for Point Thinning.
  • Grinding Wheel Flange and Balancing Weight.
  • Two Grinding Wheel Diamond Dressers (one angle dresser and one straight).
  • No. 1,2,3,4 Morse Taper Sleeve for ZB-50N
  • No. 2,3,4,5,6 M.T Sleeve for ZB-80N
  • Cam No.4 for Point Angle (40º-180º)
  • Cam No.6 for Step Drill
  • Cam No.8 for 4 Flute Taps or Reamers
  • A.C. Motor.
  • Tools for General use.
  • Service/Instruction Manual.
  • Work Light (12 Volts)
OPTIONAL ACCESSORIES
  • Flood Coolant System. (Increases wheel life and prevents burning of drill)
  • Silicon Carbide and Diamond Wheels for Carbide Drills.
  • Radial Relief Attachment. Relieves Radius of Pilot to Produce Lands. Also for Sharpening End Mills
  • Wheel Balancer & Arbor
  • Auto Feed Mechanism (pre-setting feeding quantity)
  • Powered Workhead for Automatic Rotation & Cam Action (R.P.M 0-58 stepless)
  • Extra Grinding Wheel Flange for Cup Wheel
  • Cup Grinding Wheel
  • Cam for Left Hand Drills
  • Cam for Spiral Point Drills
  • Flood Coolant System. (Increases wheel life and prevents burning of drill)
  • Silicon Carbide and Diamond Wheels for Carbide Drills.
  • Radial Relief Attachment. Relieves Radius of Pilot to Produce Lands. Also for Sharpening End Mills
  • Wheel Balancer & Arbor
  • Auto Feed Mechanism (pre-setting feeding quantity)
  • Powered Workhead for Automatic Rotation & Cam Action (R.P.M 0-58 stepless)
  • Extra Grinding Wheel Flange for Cup Wheel
  • Cup Grinding Wheel
  • Cam for Left Hand Drills
  • Cam for Spiral Point Drills

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