• At once you buy a set of drill

  *( ) The number inside is package size. W*D*H(mm). As for size there is the error of ±2mm depending upon the package.

  ■Appropriate rotation speed of electric drill used

  

  ■Penetration Test Data

  (Penetration test of 27-mm thick marble) Drill with a diameter of 4.8 mm used

  

  ■Chuck Size

  

  

  • Use the drill appropriate for the drill bit used.
  • Be sure to turn off the main switch of the electrical drill and disconnect the power supply plug from the socket before attaching and detaching the drill bit.
  • Attach the drill bit by pushing in until it stops at the end of the chucking part of the drill, and clamp the drill bit tightly so it will not loosen or come off.
  • Wear eye protection glasses.
  • Drill holes vertically against the drilled material surface.
  • Read the instruction manual for the electrical drill used carefully before use and always observe those instructions to ensure safe and correct operation.
• SPECIFICATIONS
• B type (Straight)

• Size	Dia
  Blister pack	(mm)
  B2.5X85BP	*2.5
  B2.6X85BP	*2.6
  B2.8X85BP	*2.8
  B3.0X85BP	3
  B3.2X85BP	3.2
  B3.4X85BP	3.4
  B3.5X85BP	3.5
  B3.8X85BP	3.8
  B4.0X85BP	4
  B4.3X85BP	4.3
  B4.4X85BP	*4.4
  B4.5X85BP	4.5
  B4.8X85BP	4.8
  B5.0X85BP	5
  B5.3X100BP	5.3
  B5.4X100BP	5.4
  B5.5X100BP	5.5
  B6.0X100BP	6
  B6.4X100BP	6.4
  B6.5X100BP	6.5
  B6.6X100BP	*6.6
  B7.0X125BP	7
  B7.2X125BP	*7.2
  B7.5X125BP	7.5
  B8.0X125BP	8
  B8.5X125BP	8.5
  B8.7X125BP	*8.7
  B9.0X150BP	9
  B9.5X150BP	9.5
  B10.0X150BP	10
  B10.5X150BP	10.5
  B11.0X150BP	11

• 

B type (stepped shank)

B type long (Straight)