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A - Material processing equipment
B - Equipment for the production, transport and distribution of concrete, mortar and rendering mixes
C - Lifting gear
D - Equipment for earthmoving and soil compaction
E - Road construction machinery
F - Railway track construction equipment
G - Floating equipment
H - Tunnel and mining construction equipment
J - Pile drivers and extractors, soil injection equipment
K - Drilling equipment, diaphragm wall equipment
K.0 - Rock drilling equipment and accessories
K.1 - Hydraulic rotary and percussive drilling rigs with accessories
K.2 - Hydraulic drilling machines, add-on units for dry drilling method with accessories
K.3 - Special drilling machines
K.4 - Casing machines and accessories
K.5 - Miscellaneous drilling rigs and drilling winches
K.6 - Casings and drilling tools for rope excavator operation
K.7 - Augers
K.7.0 - Augers
K.7.1 - Drilling tools for rotary drilling
K.7.10 - Drilling bucket
K.7.11 - Core drill
K.7.12 - Pile foot enlarging drill
K.8 - Tools, string drills and accessories for flush-boring system
K.9 - Diaphragm wall equipment and miscellaneous drilling equipment
L - Equipment for pipe jacking and pipeline construction
M - Equipment and plants for decontamination and environment protection
P - Transport vehicles
Q - Air compressors, pneumatic tools
R - Equipment for power generation, transformation and distribution
S - Hydraulic cylinders and hydraulic units
T - Centrifugal and piston pumps, pipelines
U - Formwork and scaffolds
W - Workshop machines and equipment
X - Construction site accomodations, containers
Y - Equipment for surveying, laboratory, office, communication and monitoring
register number K.7.11 Core drill
data processing short term KERNBOHRER
standard
equipment		 Effective length approx. 1.00 m.
With solid pins or armour-plated teeth.
register of construction equipment 1991 4350
wearing part core drilling crowns, core tubes, solid metal blades, round-shank chisel and holder