Designed with twin scribers and centering point to provide clean and accurate hole cutting every time.
Used for boring concealed hinges and door clocks.
Should work with a power drill tool.
YG-8 Carbide tip
For soft and hardwood
For enlarging existing holes
For boring any arc of a circle
Model Number
| Size | Code | Dia. D1 | Dia. D2 | Length |
| 15mm | 92117 | 8mm | 10mm | 85mm |
| 16mm | 92118 | 8mm | 10mm | 85mm |
| 17mm | 92119 | 8mm | 10mm | 85mm |
| 18mm | 92120 | 8mm | 10mm | 85mm |
| 19mm | 92121 | 8mm | 10mm | 85mm |
| 20mm | 92122 | 8mm | 10mm | 85mm |
| 21mm | 92123 | 8mm | 10mm | 85mm |
| 22mm | 92124 | 8mm | 10mm | 85mm |
| 23mm | 92125 | 8mm | 10mm | 85mm |
| 24mm | 92126 | 8mm | 10mm | 85mm |
| 25mm | 92127 | 10mm | 12mm | 85mm |
| 26mm | 92128 | 10mm | 12mm | 85mm |
| 28mm | 92129 | 10mm | 12mm | 85mm |
| 30mm | 92130 | 10mm | 12mm | 87.5mm |
| 32mm | 92131 | 10mm | 12mm | 87.5mm |
| 34mm | 92132 | 10mm | 12mm | 87.5mm |
| 35mm | 92133 | 10mm | 12mm | 87.5mm |
| 36mm | 92134 | 10mm | 12mm | 87.5mm |
| 38mm | 92135 | 10mm | 15mm | 87.5mm |
| 40mm | 92136 | 10mm | 15mm | 87.5mm |
| 42mm | 92137 | 10mm | 15mm | 87.5mm |
| 45mm | 92138 | 10mm | 15mm | 87.5mm |
| 50mm | 92139 | 10mm | 15mm | 87.5mm |
| 53mm | 92140 | 10mm | 15mm | 87.5mm |
| 54mm | 92141 | 10mm | 15mm | 87.5mm |
| 55mm | 92142 | 10mm | 15mm | 87.5mm |
| 57mm | 92143 | 10mm | 15mm | 87.5mm |
| 60mm | 92144 | 10mm | 15mm | 87.5mm |