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CDM1H HAND-HELD CORE DRILL — GENERAL INFORMATION
APPLICATION
The MQ CDM1H Hand-Held Core Drill is designed to be used for
either dry or wet drilling applications involving concrete type materials.
Up to 3-inch (76.2 mm) diameter holes can be drilled for wet drilling
applications using standard MQ drill bits or 5-1/8 inch (130 mm)
diameter holes for wet or dry applications using the Cobra™ drill
bits.
Power Plant
The MQ CDM1H is powered by a 115 VAC electric motor @12
amps. Maximum RPM's is 2200 . The unit weighs 9.0 lbs (3.35 kg.)
Features
This unit is equipped with the following:
■ Adjustable Shoulder Rest.
■ Internal Water Feed System.
■ Carrying Case with Tools.
Cobra™ Drill Bits (Wet and Dry)
The Cobra™ drill bits are engineered to drill through reinforced
concrete with or without water. These bits are available in 6 or 10
inch (15.24- 25.4 cm.) drilling depths and range in diameter
from 1 to 5 inches (25 to 127 mm.).
Standard MQ Drill Bits (Wet)
This core drill can use the following series of wet drilling bits:
■ GCB Series – economy quality small jobs.
■ GB Series –
standard quality small to mid-size jobs.
■ PRB Series – premium quality for fast speeds.
■ PCB Series – super premimum quality and long life.
■ PCB Series – pro quality, high steel content and
extremely hard aggregate small jobs.
Contact the MQ Sales Department for the core
drill that best fits your application.
Threads/Adapters and Core Bit Combinations
The CDM1H core drill is manufactured with a 18 mm male drive
shaft that connects to all MQ Cobra™ drill bits. Included is a 18 mm
female to 1-1/4" - 7 male thread adapter for most wet core bits
(1" - 3" diameter) that are manufactured with a 1-1/4"-7 female
thread lug. For core bits with a 5/8"-11 female lug, an optional
adapter (P/N AD114F58M) is available through Multiquip Parts.
See Figure 1 and Table 1 for placement and description of each
type of drill bit and adapter.
PAGE 10 —CDM1H CORE DRILL — OPERATION AND PARTS MANUAL — REV. #4 (12/18/07)
Figure 1. Threads/Adapters and Core Bit Combinations
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