The invention concerns a drilling column (1) linked by a connector (5) to a sledgehammer drilling head (6). Fitted to the connector (5) is a skirt (14) which is open at the lower end and which is mounted eccentrically with respect to the drilling head (6). The drill pipe (2) ...
All Steel Strike Drilling Crack Sledge Stoning Hammer (FM-HM039), Find Details and Price about All Steel Stoning Hammer Hammer with Tubular Handle from All Steel Strike Drilling Crack Sledge Stoning Hammer (FM-HM039) - Suzhou Foxmax Tools Co., Ltd.
2-20lb Forged Sledge Drilling/Crack Hammer with Fibre Glass Handle (FM-HM-060), Find Details and Price about Hardware Hand Tool from 2-20lb Forged Sledge Drilling/Crack Hammer with Fibre Glass Handle (FM-HM-060) - Suzhou Foxmax Tools Co., Ltd.
With a sledgehammer and dowel there is.SamT Now if I could just remember that I am a businessman with a hammer and not a craftsman with a business...segundo <!---><!---> fingersandtoes | Dec 06, 2006 05:58pm | #112 Sorry SamT. I only introduced a new line of discussion...
Duck Bill Flat Head Square Head Steel Pipe Electrician Fitter Hammer US$1.15-4.94 / Piece 1000 Pieces (MOQ) Contact Now Quick View00:49 New Type Spark-Proof Brass Sledge Hammer From Linyi City US$2.00-5.00 / Piece 600 Pieces (MOQ) ...
The invention concerns a drilling column (1) linked by a connector (5) to a sledgehammer drilling head (6). Fitted to the connector (5) is a skirt (14) which is open at the lower end and which is mounted eccentrically with respect to the drilling head (6). The drill pipe (2) ...
The device has a down-the-hole hammer with a percussion drill bit. A drill pipe (2) is arranged with a channel for cuttings. A supply channel is provided for a flushing medium and a flushing medium supply device. A seal (18) is arranged for sealing a borehole against a borehole ...
A drilling column has a percussive drilling head attached to a lower end thereof. The drilling column includes a skirt extending downwardly from a lower end thereof in surrounding relationship to the drilling head. The skirt is disposed in eccentric relationship to the drilling head, so that an...
drillingrock mass characterizationIn underground construction projects problematic rock mass conditions are one of the major issues causing cost overruns during the excavation phase. Before a tunneling project starts the rock mass is roughly characterized by a pre-investigation. However, in many cases, ...
Sledgehammer drilling apparatus and methodnot available for EP1731708doi:EP1731708 B1ABT JOHANNESFLEISCHMANN FRANKEPEP1731708A1 * Jun 10, 2005 Dec 13, 2006 Geomechanik Wasser- und Umwelttechnik GmbH Sledgehammer drilling apparatus and method