• Modern Rock Drilling operations place ever increasing demand on the drilling tools.
• The life of Drill Tools depends on the right carbide grade.
• Rapicut has developed a grade for Carset / Cross bits, 4-point Bits, Retrac Bits and many other types. Each insert and grade is specially designed to meet stringent quality requirements.

• To mine Brown Coal or Lignite from open cast mines a special technique called Bucket Wheel Excavation (BWE) is used.
• The wheel of excavator is provided with buckets which have sharp teeth to rip the soil and excavate the sediment.
• Rapicut has developed the grade which is highly wear resistant and tough enough to withstand any impact loading.

Rapicut Drill Steel Inserts (DSI) are brazed on Integral Drill Steel Rod to drill the hole for blasting. Rapicut has successfully designed and developed the grade which gives longer life, greater reliability and increased fatigue strength. Rapicut is the Market Leader in India for Quality DSI.

RE-GRINDING INSTRUCTIONS FOR DS INSERTS :

1. Check the wear on TC Drill Steel Inserts by grinding template.

2. When flatness on Inserts reaches 3 mm at corner, grind D S Inserts. When height of anti taper reaches 8 mm, grind D S Inserts.

3. If snake skin is developed grind DS Inserts.

4. Use GC46 J5VG/GC60 K5VG straight or cup wheel to grind.

5. Grind off frontal and gauge wear check by template.

6. Grind crown and provide clearance and cutting angles on steel body.

7. Inspect Drill Steel at regular intervals for abnormal

• Rapicut has developed Tungsten Carbide Buttons in various grades suitable for use in products like Down The Hole Drilling Bits, Tricon Rock Roller Bits, Special Bits required for underground cable laying etc.
• Rapicut can supply the buttons in ground and tumbled finish which facilitates perfect fitting in shank.

RE-GRINDING INSTRUCTIONS FOR TC BUTTONS -

1. Check the wear TC button by grinding template.

2. When flatness on face & gauge buttons is 4 mm & 6 mm respectively, grind buttons.

3. With no apparent wear on buttons, if snake skin is developed, grind buttons.

4. Use GC60 KSVG, mounted point wheel to grind TC Buttons.

5. Restore dome shape, check by template.

6. Inspect button bits at regular intervals for abnormal wear.

• Octagonal and Square Inserts are used in Core Bits for Rotary drilling in exploration work.
• Rapicut has established itself as a leading supplier of these products. These inserts are manufactured in various sizes with 10 or 15 degree rake angle.

Rapicut has a special grade for these Inserts which offers faster penetration rate and failure-free service.

• To mine Brown Coal or Lignite from open cast mines a special technique called Bucket Wheel Excavation (BWE) is used.
• The wheel of excavator is provided with buckets which have sharp teeth to rip the soil and excavate the sediment.
• Rapicut has developed the grade which is highly wear resistant and tough enough to withstand any impact loading.