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) ...
Name 2-20LB Forged Sledge Drilling/Crack Hammer with Fibre Glass Handle Item No. FM-HM-060 Material Carbon Steel / Fibre Glass Handle Finish / Color Drop Forged, full polished head, semi-polished head Size 2LB, 2.5LB, 3LB, 4LB, 6LB, 7LB, 8LB, 10LB, 12LB, 14LB, 16LB...
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.
Product Description Name 2-20LB Forged Sledge Drilling/Crack Hammer with Fibre Glass Handle Item No. FM-HM-060 Material Carbon Steel / Fibre Glass Handle Finish / Color Drop Forged, full polished head, semi-polished head Size 2LB, 2.5LB, 3LB, 4LB, 6LB, 7LB, 8LB, 10LB, ...
Sledgehammer handles aside...and speaking only of practical building applications... If you cut birdsmouths at the top and bottom of a rafter so that the bottom birdsmouth is applying force straight down on the wall plate and the top birdsmouth is applying force straight down on the top ...
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) ...
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...
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 bo...
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
The History and Future of Rock Mass Characterisation by Drilling in Drifting From sledgehammer to PC-tabletmeasurement while drillingMWDdrillingrock mass characterizationIn underground construction projects problematic rock mass conditions are one of the major issues causing cost overruns during the ...