Description
Modular Combination Drilling and Tapping Machine for 3/4" and 1" Water Service Connections
Overview
Water service installations often require both direct tapping and saddle drilling, which typically means carrying two separate machines. The Reed CDTM1100 is a combination drilling and tapping machine that covers both operations in a single modular kit for 3/4" and 1" corporation stops on 4" to 48" water mains. Conversion between modes takes minutes in the field.
Specifications
| Specification | Detail |
|---|---|
| Catalog No. | CDTM1100 |
| Item Code | 09304 |
| Tap & Drill Capacity | 3/4" - 1" |
| Pipe Diameter | 4" - 48" (100 - 1200mm actual O.D.) |
| Gross Weight (incl. tote) | 114.4 lbs / 52.0 kg |
| Design Pressure Rating | 250 psi (valve and chamber) |
| Operating Pressure Rating | 90 psi |
| Machine Clearance Radius | 32" |
| Operation | Manual ratchet or power drive (13/16" square shaft) |
| Frame Material | Hard anodized aluminum, powder epoxy painted |
| Boring Bar | Alloy steel |
| Flushing Port | 1/2-14 NPT (bottom chamber) |
| Tapping Compatibility | Cast iron, ductile iron, C-900 PVC |
| Drilling Compatibility | Cast iron, ductile iron, C-900 PVC, PE (shell cutters) |
| Cutting Tools Required | DT series drill taps, D series drill bits, hole cutters, PL shell cutters (sold separately) |
| Warranty | 5 years (hand tool category) |
| Restriction | Not for natural gas or petroleum piping |
Key Features
- Two Machines in One Kit. The CDTM1100 combines a TM1100 direct tapping machine and a DM1100 drilling machine into a single modular package. Both configurations share the same frame, chamber, and feed assembly, keeping the combined package to 114.4 lbs in the rolling tote.
- 3/4" and 1" Corporation Stop Coverage. Separate saddles cover pipe diameters from 4" through 42", matching the machine to the full range of municipal main sizes. The kit includes insertion tools and corp adapters for both 3/4" and 1" installations.
- 32-Inch Clearance Radius. The machine requires a 32-inch working radius around the pipe, reducing the excavation needed for service connections. The compact footprint suits confined utility trenches.
- Flip Clamp Feed System. The quick-release flip clamp engages and disengages the star feed without repeated adjustment. Manual feed lets the operator feel resistance from the drill tap to control cutting depth.
- Manual or Power Drive Operation. The ratchet wrench drives the boring bar through a 13/16" square shaft. A power drive adapter (sold separately) connects motorized drives for faster drilling and tapping.
Applications
This combination drilling and tapping machine handles 3/4" and 1" water service connections on pressurized mains:
- Direct tapping of corporation stops on cast iron and ductile iron distribution mains
- Saddle drilling for service connections on C-900 PVC and PE water mains
- Equipping service trucks with a single pipe tapping and drilling machine instead of separate units
- New service installations and main extensions on municipal water systems
- Lead service line replacement programs where both tapping and drilling happen in the same shift
Drilling and Tapping Modes
As a combination drilling and tapping machine, the CDTM1100 operates in two distinct configurations that cover the full scope of 3/4" and 1" water service connection work.
Tapping mode functions as a TM1100 direct tapping machine for water mains. A Reed DT series drill tap drills through the pipe wall and cuts threads in one pass. The operator then closes the swing valve, attaches a corporation stop to the boring bar via the included adapter shank and insertion tools, and threads the corp stop into the tapped hole. Tapping mode works on cast iron, ductile iron, and C-900 PVC mains.
Drilling mode functions as a DM1100 saddle drilling machine. A corporation stop is pre-installed into a service saddle on the pipe, and the machine mounts onto the open corp stop. A drill bit or hole cutter passes through to cut the pipe wall. After drilling, the boring bar retracts and the corp stop closes. Drilling mode adds PE pipe compatibility using PL series shell cutters.
Conversion between modes requires removing the bearing assembly, swapping the boring bar, and reinstalling the bearing assembly. No additional tools beyond those in the kit are needed.
Buy Reed CDTM1100 Combination Drilling/Tapping Machine Online from Cleanflow
Cleanflow Utility Supply Company is an authorized Reed dealer serving customers across Canada and the United States. Free shipping on orders over $199, with a 30-day return policy. The CDTM1100 ships with all machine components, adapters, and hand tools in a rolling tote, backed by a 5-year warranty; drill taps, drill bits, hole cutters, shell cutters, and saddles are sold separately.
Browse all drilling and tapping machines or see the full Reed collection.
Frequently Asked Questions
What is the difference between drilling and tapping a water main?
Tapping uses a drill tap to simultaneously drill through the pipe wall and cut threads, so the corporation stop screws directly into the pipe. Drilling uses a separate drill bit or hole cutter to cut through the pipe wall via a corporation stop already installed in a service saddle. The CDTM1100 serves as both a water main tapping machine and a saddle drilling machine for 3/4" and 1" service connections.
What pipe materials can the CDTM1100 tap and drill?
In tapping mode, the CDTM1100 works on cast iron, ductile iron, and C-900 PVC water mains using Reed DT series drill taps. In drilling mode, it handles the same materials plus PE pipe using PL series shell cutters. For cast iron pipe and ductile iron mains, crews can use either tapping or drilling mode depending on the connection type.
What cutting tools work with the Reed CDTM1100?
For tapping, the machine uses Reed DT series drill taps (3/4" and 1" sizes) that drill and thread in a single pass. For drilling on metal pipe, D series drill bits and heavy-duty hole cutters mount through the hole saw adapter. PL series shell cutters are used for PVC and PE drilling, applied without a pilot drill.
How do you tap a water main for a corporation stop?
Clean the pipe surface, place a tapping saddle with gaskets, and mount the machine chamber onto the saddle using the chain assembly. Insert a drill tap coated with tapping compound, feed it to the pipe, and rotate the ratchet wrench clockwise while advancing the star feed until reaching the depth stop line on the boring bar. Back out the drill tap, close the swing valve, attach the corporation stop to the boring bar via the adapter shank, and thread it into the tapped hole.
What is the difference between the CDTM1100, TM1100, and DM1100?
The TM1100 (09300) is a direct tapping machine only. The DM1100 is a saddle drilling machine only. The CDTM1100 (09304) is the combination drilling and tapping machine in Reed's lineup, bundling both configurations into a single modular kit so crews carry one machine instead of two. For larger drilling capacity, the CDTM2100 extends drilling range to 2" while keeping the same 3/4"-1" tapping capability.
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