Standard No.:	GB/T 1143-2004
English Name:	Morse taper shank countersinks for angles 60°and 90°,120° inclusive
Chinese Name:	60°、90°、120° 莫氏锥柄锥面锪钻
Chinese Classification:	J41    Cutting tools
Professional Classification:	GB    National Standard
ICS Classification:	25.100.30 25.100.30    Drills, countersinks, reamers 25.100.30
Issued by:	AQSIQ; SAC
Issued on:	2004-2-10
Implemented on:	2004-8-1
Status:	valid
Superseding:	GB/T 1143-1984 Countersinks with Morse taper shanks for angles 60, 90 and 120 degree inclusive
Language:	English
File Format:	PDF
Word Count:	1000 words
Price(USD):	70.00
Delivery:	via email in 1~3 business day

本标准规定了60°、90°、120°莫氏锥柄锥面锪钻的尺寸。本标准只规定米制尺寸，对切削直径16mm至80mm的锪钻，以后也只推荐米制尺寸这些尺寸只适用于高速钢刀具，但生产上允许，柄部可用适合的材料代替，如碳钢。莫氏锥柄按GB／T1443的规定。除另有说明外，锪钻制成右切削。直柄锥面锪钻在GB／T4258中给出。