Invention Grant
- Patent Title: Short-hole drill and a drill body therefor
- Patent Title (中): 短孔钻头和钻体
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Application No.: US11584758Application Date: 2006-10-23
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Publication No.: US07896588B2Publication Date: 2011-03-01
- Inventor: Raimo Ananolli
- Applicant: Raimo Ananolli
- Applicant Address: SE Sandviken
- Assignee: Sandvik Intellectual Property AB
- Current Assignee: Sandvik Intellectual Property AB
- Current Assignee Address: SE Sandviken
- Agency: Drinker Biddle & Reath LLP
- Priority: SE0502362 20051026
- Main IPC: B23B41/02
- IPC: B23B41/02 ; B23B51/00

Abstract:
A short-hole drill, including a drill body being rotatable about a center axis and having a rotationally symmetrical envelope surface, one or more replaceable cutting inserts mounted in pockets in a front end of the drill body, one or more outwardly open flutes being countersunk in the envelope surface and extending rearwardly from the front end of the drill body to evacuate chips from the cutting inserts, and a number of replaceable first support pads being mounted in countersunk seats proximate the front end of the drill body to support and guide the drill against a hole wall generated by the cutting inserts. A number of second support pads are mounted in countersunk seats that are axially spaced apart from the first support pads by an envelope surface portion having a predetermined axial extension to support and guide the drill when the first support pads leave the hole wall.
Public/Granted literature
- US20070092347A1 Short-hole drill and a drill body therefor Public/Granted day:2007-04-26
Information query