![]() ![]() 1 is a perspective view of the bolt extractor combination tool of the present invention, Further, the invention relates to improved gripping means on the outside of the collet preferably in the form of left-hand threads or fluttings. This guide means is in the form of an enlargement on the upper end of the collet which, when the collet is inverted, engages in the aligned opening of an adjacent flange as the drilled hole is started. The present invention relates to improved guide means to guide the drill bit in making its initial contact with the stud so that the drilled bore will be in the center thereof. B25B13/50- Spanners Wrenches for special purposes for operating on work of special profile, e.g.B25B13/48- Spanners Wrenches for special purposes.B25B27/18- Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same withdrawing broken threaded parts or twist drills.B25B27/14- Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same. ![]() B25B27/00- Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for.B25B- TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING.B25- HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS.Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Priority claimed from US43025889A external-priority Application filed by Alden Corp filed Critical Alden Corp Publication of EP0451256A1 publication Critical patent/EP0451256A1/en Publication of EP0451256A4 publication Critical patent/EP0451256A4/en Application granted granted Critical Publication of EP0451256B1 publication Critical patent/EP0451256B1/en Anticipated expiration legal-status Critical Status Expired - Lifetime legal-status Critical Current Links Original Assignee Alden Corp Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) ( en Inventor Eli Polonsky Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number EP90916914A Other languages German ( de)
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