The M-1 Comprehensive Core Drilling Rigs are a top choice for general contractors. It's the number one selling rig in the USA! With a 10” standard bit capacity (14” with spacers for Weka models) and 14' standard bit capacity for CB733 and CB744, it offers great flexibility.
Features and benefits include:
- A 2 - 1/2” square column (mast) with a black oxidized finish for durability.
- 6” wheels for easy movement around the job site.
- A dual switch/outlet control panel with an amp meter (LED amp meter for CB700 models).
- A vacuum pump (included with combination rigs) allows for quick mounting on flat surfaces without drilling anchor holes.
- Four leveling screws on the base for stability.
- Up to 14” bit capacity with one spacer block.
- A slide handle for drilling in tight spaces.
- A combination base that can quickly switch from vacuum to anchor base.
- A ceiling jack to keep the rig in place as a backup for anchoring or vacuuming the base.
Here are the specifications of different models:
| Engine/Motor Model | Motor/Engine Power | Engine/Motor Make | Motor RPM | Rig Type | Part Number | Catalog Number |
| --- | --- | --- | --- | --- | --- | --- |
| CB744 | 25 amp, 110 volt | Core Bore | 385/530/975/1340 | Complete rig with add - on vacuum base and vacuum pump | 4245104 | 81050 |
| DK22 | 23 amp, 110 volt | Weka | 300/640/960 | Complete rig with add - on vacuum base and vacuum pump | 4245053 | 47173 |
| DK22S | 23 amp, 110 volt | Weka | 420/880/1300 | Complete rig with add - on vacuum base and vacuum pump | 4245046 | 50138 |
| CB744 | 25 amp, 110 volt | Core Bore | 385/530/975/1340 | Complete rig without vacuum pump | 4245111 | 81053 |
| DK22 | 23 amp, 110 volt | Weka | 300/640/960 | Complete rig without vacuum pump | 4245077 | 71962 |
| DK22S | 23 amp, 110 volt | Weka | 420/880/1300 | Complete rig without vacuum pump | 4245078 | 72583 |
| CB744 | 25 amp, 110 volt | Core Bore | 385/530/975/1340 | Anchor rig | 4245103 | 81054 |
| DK22 | 23 amp, 110 volt | Weka | 300/640/960 | Anchor rig | 4245008 | 52339 |
| DK22S | 23 amp, 110 volt | Weka | 420/880/1300 | Anchor rig | 4245011 | 66795 |
| CB733 | 20 amp, 115 volt | Core Bore | 550/1000/1600 | Complete rig with add - on vacuum base and vacuum pump | 4245112 | 85327 |
| CB733 | 20 amp, 115 volt | Core Bore | 550/1000/1600 | Anchor rig | 4245114 | 39195 |
Attachments include the M - 1 Complete Core Rig - Operator Manual (#1801993) and the M - 1 Complete Core Rig - Parts List.
Using your M-1 Comprehensive Core Drilling Rig is straightforward. First, choose the right bit size according to your job requirements. If you're using a combination rig with a vacuum pump, you can quickly mount it on a flat surface without drilling anchor holes. Just turn on the vacuum pump and it'll hold the rig in place. For tight spaces, use the slide handle to operate the drill.
When it comes to safety, always wear appropriate safety gear like goggles and gloves. Make sure the power source matches the rig's voltage requirements. Don't forget to check the amp meter on the control panel to ensure the motor is running within the safe range.
For maintenance, regularly clean the rig to prevent dust and debris from affecting its performance. Check the 2 - 1/2” square column (mast) and the 6” wheels for any signs of wear. Lubricate moving parts as needed. If you need to change the base from vacuum to anchor or vice versa, follow the instructions in the operator manual. And keep the leveling screws on the base adjusted for a stable drilling operation.
