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Highlights Size table Combination list

IT carbide drills

The actual sizes are in metric, and imperial sizes are approximate.
The bit size (diameter) is based on MIYANAGA standard.
Bit size D Part No. Overall length L Max. drilling depth l
  mm inch
3.5mm 9/64" ITT035 120mm (4-3/4") 50mm (2")
  4.0mm 5/32" ITT040
  4.3mm   ITT043
  4.5mm 11/64" ITT045
  5.0mm 3/16" ITT050
  6.0mm 15/64" ITT060 130mm (5-1/8") 65mm (2-9/16")
  6.5mm 1/4" ITT065
  8.0mm 5/16" ITT080 140mm (5-1/2") 75mm (2-7/8")
8.5mm 21/64" ITT085
  9.0mm 23/64" ITT090 150mm (5-7/8") 90mm (3-1/2")
  10.5mm 13/32" ITT105


IT drill cutters

The actual sizes are in metric, and imperial sizes are approximate.
The bit size (diameter) is based on MIYANAGA standard.
Bit size D Part No.
  mm inch
  8.5mm 21/64" IT085C
  9.0mm 23/64" IT090C
  10.0mm 3/8" IT100C
  10.5mm 13/32" IT105C
  11.0mm 27/64" IT110C
12.0mm 15/32" IT120C
  12.5mm 1/2" IT125C
  14.5mm 9/16" IT145C
  16.0mm 5/8" IT160C
  16.5mm 41/64" IT165C
  18.0mm 45/64" IT180C
* Cutters for the IT diamond drill straight body are compatible with the IT drill cutters.


IT drill cutters

The actual sizes are in metric, and imperial sizes are approximate.
The bit size (diameter) is based on MIYANAGA standard.
Bit size D Part No.
mm inch
19.0mm 3/4" IT190C
20.0mm 25/32" IT200C
22.0mm 7/8" IT220C
23.0mm 29/32" IT230C
24.0mm 15/16" IT240C


Shank assembly

Item Part No.
IT (+) shank No.2 ITPSK2
* Note: To use a cutter with a diameter of 19mm (3/4") and larger, remove the IT drill chuck and instead attach the IT diamond drill straight body.

IT plug ejector

Item Part No. Overall length
IT plug ejector ITPE110 110L
* Can be used with a cutter with a diameter of 12mm (15/32") or larger.


IT diamond drill straight bodies

Bit size D Part No. Overall length L Max. drilling depth l
  mm inch
  8.5mm to 10mm 21/64" to 3/8" IT085SB 110mm (4-1/4") 60mm (2-3/8")
  10.5mm to 12mm 13/32" to 15/32" IT105SB
12.5mm 1/2" IT125SB 150mm (5-7/8") 100mm (3-7/8")
  14.5mm 9/16" IT145SB
  16mm 5/8" IT160SB
  16.5mm 41/64" IT165SB
  18mm 45/64" IT180SB


IT diamond drill bodies

Bit size D Part No. Overall length L Max. drilling depth l
mm inch
19.0mm 3/4" IT190B 153mm (6-25/64") 130mm (5-1/8")
20.0mm 25/32" IT200B
22.0mm 7/8" IT220B 223mm (8-25/32") 200mm (7-7/8")
23.0mm 29/32" IT230B
24.0mm 15/16" IT240B


Optional accessories

Item Part No.
IT drill cover adaptor ITBCADP
Plastic hood 100 PCSJC100
IT drill chuck ITDC
Diamond dressing plate DDP
Positioning Guide PG