LONG HOLE DRILL WITH TITANIUM BASED CARBONITRIDE ALLOY INSERTS - Patent 0686072

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EP 0 686 072 A1

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(43)	Date of publication:
	13.12.1995 Bulletin 1995/50

(21)	Application number: 94905291.0

(22)	Date of filing: 14.01.1994

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International Patent Classification (IPC):

B23B 51/ 06^{( . )}

B23B 51/ 04^{( . )}

(86)	International application number:
	PCT/SE1994/000024

(87)	International publication number:
	WO 1994/015740 (21.07.1994 Gazette 1994/17)

(84)	Designated Contracting States:
	AT CH DE FR GB IT LI SE

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Priority:

15.01.1993 SE 19930000121

(71)	Applicant: SANDVIK AKTIEBOLAG
	S-811 81 Sandviken 1 (SE)

(72)	Inventors:
	WESTERGREN, Kenneth S-126 58 Hägersten (SE) BLOMBERG, Torsten S-811 37 Sandviken (SE)

(74)	Representative: Östlund, Alf Olof Anders
	Sandvik AB Patent Department S-811 81 Sandviken S-811 81 Sandviken (SE)

(54)	LONG HOLE DRILL WITH TITANIUM BASED CARBONITRIDE ALLOY INSERTS