JB/T 10002-1999 This standard is a revision of ZB J41 019-90 "Long straight shank twist drills". During the revision, the performance test chapter was deleted, and editorial modifications were made in accordance with relevant regulations. Other technical contents remained unchanged. The original standard non-equivalently adopted the international standard ISO 235-1980 "Straight shank twist drills". This standard specifies the type and size, technical requirements and basic requirements for marking and packaging of long straight shank twist drills. This standard is applicable to long straight shank twist drills with a diameter of 2~20mm. This standard was first issued on the date of year. JB/T 10002-1999 Long straight shank twist drill JB/T10002-1999 Standard download decompression password: www.bzxz.net

KN25.1.30
Machinery Industry Standard of the People's Republic of China
JB10002-1999
Long Straight Shank Twist Drill
1999-(15-2) Issued
National Bureau of Machinery Industry
2000-01-01 Implementation
JB/T10002-1999
This standard is a revision of ZBJ41019-Long Straight Shank Twist Drill. Except for the test chapter, the editorial revision was made in accordance with relevant regulations. Other technical contents have not changed. This standard replaces ZBJ4101990 from the date of implementation. This standard is issued by the National Tool Industry Bureau The Standardization Technical Committee proposed and drafted this standard. The responsible drafting units are: Harbin Complex Cutting Tool Institute, Chengdu Tool Research Institute, and the main drafters of this standard are: Guangqing, Chen Ketian, and Fan Jin. Scope
Machinery Industry Standard of the People's Republic of China
Long Straight Shank Twist Drill
JR/T10D02-159
This standard specifies the type and size, technical requirements and marking and packaging requirements of long straight shank twist drills. This standard It is suitable for long straight shank twist drills with a diameter of 2~20mm. 2. Types and sizes
2. The types of long straight shank twist drills are shown in Figure "New", and the sizes are given in Table 1. Figure
Yuemu size
First series
Second series
National Machinery Industry Week 1999-05-20 Approved limit deviation
2000-01-01 Implementation
First series
|First series
IR/T10002—1990
Table 1 (grade)
Limit deviation
Basic size
First series
Eastern series
JB/T10002—1999
Table 1 (continued)
Limit deviation
Basic size
First series
Second series
JB/T 10002—1999
Limit balance difference
Basic people's small
First series
Second series
JB/T10002—1999
Table 1 (twisting)
Share deviation
Rough series
Second seriesbzxz.net
JB/T10002-1999
Light limit screening
In: The first twist drill with a diameter is preferred to use and cattle production 2.2 Marking example
Diameter card sa The mark of the long straight shank twist drill of 1000 mm is long straight shank twist drill 5JB: T100021999
3 Technical requirements
3.1 The cutting edge of the twist drill should be smooth and free of defects such as chipping, cracks and grinding burns that affect the performance. 2 The surface roughness of the twist drill shall be as specified in Table 2. 32
The position of the twist drill shall be as specified in Table 3. The radial micro-motion of the working part to the closed part line
The drill core to the working part is symmetrical
The oblique circular motion of the working part axis
3.4 The diameter of the working part of the twist drill is 0.03~0.10mm for every 100mm length. 3.5 The core of the twist drill is 100mm. The length is 1.4-2.0mm. 10--[6
The surface of the twist drill
3.6 The length of the twist drill (, the tolerance should be based on the size distribution of the original size, the length of the twist drill should not exceed the basic size of the upper and lower adjacent twist drills. According to the requirements of the manufacturing method, the length of the twist drill (,) should be more stringent: JR/T1(H002-1999
3.7 The twist drill is made of high-speed steel with the same performance as W6Mo5Cr4Y2, and the handle of the twist drill is made of 45 steel Or other steel with equivalent performance:
3. Hardness test: ≥63HRC
3.9 Twist drills shall be steam treated or other surface strengthening treatments: The surface of the twist drills shall be steam treated or other surface treatments. 4. Marking and packaging
4.1 Marking
4. 1.1 Products shall be marked with [diameter & <4mm may not be marked] Manufacturer or sales flow mark:
b) Twist drill diameter:
c) High speed code [HSSJ.
4.1.2 The packaging tray should be marked with:
a) the name, address and trademark of the manufacturer or seller; b) the drill mark;
c) the material brand or chemical number;
d) the number of pieces;
e) the year and month of manufacture.
4.2 Packaging
The drill should be treated with rust prevention before packaging. The loading must be reliable and prevent damage during transportation.
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