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Standard diamond hollow drill
Standard diamond hollow drill
Standard diamond hollow drill

Standard diamond hollow drill

Product number: BO5000490

Description

The diamond hollow drill with an external thread (Continental) R ½ inch is made of steel covered with protective lacquer and a diamond coating of sintered material.

 

Application note:
The drill bit must be sharpened before first use! Select the correct speed Drill bit speeds: ø 3-4 mm = 4000-5000 1/min - ø 5-15 mm = 2000-3000 1/min - ø 16-25 mm = 1500-2000 1/min - ø 26-50 mm = 500-1500 1/min - ø 51-100 mm = 300-800 1/min o Speed too low: The bond between the diamond grains is not sufficiently removed, the drill bit becomes blunt and must be resharpened with a sharpening stone (BO 5000499 / BO 5000499B / BO 5000499L). o Speed too high: The diamond grains can be torn out of the bond. Ensure cooling o Diamond hollow drills require internal water cooling - external cooling is not sufficient. o For deeper drill holes, lift the drill at short intervals to flush out the drill hole. Adjust water pressure o The required water pressure depends on the drill diameter. o Without adjustment, the back pressure increases with increasing diameter and makes the feed more difficult. Reduce tool wear o The coolant Bohle Vetrocool (BO 5002827 / BO 5002828) lowers the drilling forces and reduces tool wear by up to 30 %.

Your Advantages

  • For normal use
  • Made in Italy

Technical details

Application area
Glass, Indoor, Wet
Diameter
90 mm
External thread
½ "
Length
75 mm
Model
Standard quality
Package contents
1 Piece
Revolution
300 - 800 U/min

Drawings

jpg
BO_5000403_z.jpg

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