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Recommended rotation speed for diamond bits.

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Poly-Clic Drimond core bits, Drimond core bits for block, Hyperdia core bits
S-LOCK Hyperdia holesaws
| Cutter size D |
Rotation speed (rpm) |
Power consumption (W) |
| mm |
inch |
| 25mm to 45mm |
1" to 1-3/4" |
1500 to 800 |
450W or larger |
| 50mm to 80mm |
2" to 3-1/8" |
1100 to 700 |
550W or larger |
| 85mm to 120mm |
3-3/8" to 4-3/4" |
650W or larger |
| 130mm to 220mm |
5-1/8" to 8-21/32" |
1100 to 500 |
750W or larger |
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Poly-Clic Wetmond core bits
S-LOCK Tile holesaws
| Cutter size D |
Rotation speed (rpm) |
Power consumption (W) |
| mm |
inch |
| 25mm to 38mm |
1" to 1-1/2" |
4900 to 800 |
500W or larger |
| 45mm to 65mm |
1-3/4" to 2-9/16" |
2700 to 500 |
| 70mm to 120mm |
2-3/4" to 4-3/4" |
1800 to 300 |
700W or larger |
| 130mm to 220mm |
5-1/8" to 8-21/32" |
1000 to 200 |
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Mistdia Drill Bit
| Bit size D |
Rotation speed (rpm) |
Power consumption (W) |
| mm |
| 4mm to 10.5mm |
15000 to 3000 |
250W or larger |
| 11mm to 24mm |
7000 to 1500 |
500W or larger |
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IT drills / IT bind method (IT diamond straight body)
| Bit size D |
Rotation speed (rpm) |
Power consumption (W) |
| mm |
inch |
| 4mm to 10.5mm |
5/32" to 13/32" |
5000 to 2000 |
250W or larger |
| 11mm to 24mm |
27/64" to 15/16" |
500W or larger |
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* Tools of some bit/cutter size may not fit the following electric drills.
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PC-Drimond core bits
PC-Drimond core bits for block
PC-Hyperdia core bits
SL-Hyperdia holesaws |
PC-Drimond core bits
(For hume pipe) |
Mistdia Drill Bits |
| Hitachi |
DC-120
VTP-25
V-19
DV-20VB
DV-21V |
DC-120
VTP-25
V-19
DV-20VB
DV-21V
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DW12SA*1
DW12*1
DV20VB
DV21V
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| Makita |
63004
8419B
6300T (small diameter)
8406 (small diameter)
8406C (small diameter) |
63004 |
DD2011*1
6408
6310
8406C |
| Bosch |
GBH-2/24DSE
GBH-2/24DSR
GBH-2SE |
GBH-4DSC |
GBM13-2RE |
| HILTI |
TE-18M
TE-25 |
TE-18M
TE-25 |
TE-18M |
| Kudo-koki |
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| AX BRAIN |
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IT drills
IT diamond straight bodies |
PC-Wetmond core bits
SL-Tile holesaws |
PC-Wetmond core bits
(o 120mm (4-3/4") or larger) |
| Hitachi |
DV20VB
D6SH
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DC-120
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DC-120
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| Makita |
DP2001A*2 |
6300T
8406
8406C |
8406
8406C |
| Bosch |
GBM6*2
GSB20-2RE/N
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| HILTI |
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TE-18M
TE-25 |
TE-18M
TE-25 |
| Kudo-koki |
KD-5000 |
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| AX BRAIN |
AX-5130 |
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| Red: With safety clutch |
| Blue: Without double insulation |
| *1: |
Because it has no side handle, but has a hose, the coolant does not turn. Usable. |
| *2: |
Because it has no side handle, it must be fixed separately before use. |
- If the electric drill produces a low output, its rotation will stop, thus disabling drilling.
- Never stop drilling halfway through completion. (The cutting teeth may get broken.)
- If the cutter becomes dull during drilling for some reason, make filing by drilling several holes in a block, GC stone, etc.
- For dressing (filing), it is recommended to use our dressing plates.
(Click here)
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