Abstract： ASME B107.17:2020 pdf download.Gages and Mandrels for Wrench Openings. The gages shall be used in accordance with accepted practices. Manufacturers iiiay use gages with tighter dimensions than those shown herein The size for all limits (GO...

ASME B107.17:2020 pdf download.Gages and Mandrels for Wrench Openings.

The gages shall be used in accordance with accepted practices. Manufacturers iiiay use gages with tighter dimensions than those

shown herein

The size for all limits (GO and NO GO) gages shall not exceed the extreme limits specilie(l herein. All variations (manufacturing

tolerance, calibration error, wear allowance. etc.) in the gages. whatever their cause or purpose. shall hring these gages within

the extreme limits of the gage size specified within this Standard. Thus a gage that represents a minimum limit iiiay be larger,

but never smaller, than the minimum size specified; likewise. the gage that represents a maximum limit may he smaller. but never

larger, than the maximum size specified.

4.2.1 Rounding Method. A rounding method shall be used lordeterminingdimensions forgages. When the next digit beyond the last

digit to be retained is

(a) less than 5. the last digit to be retained is not changed

(b) 5 or more, the last digit to be retained is increased by one

4.3 MandreLs Use and Design

4.3.1 Mandrets for Nut End Socket Openings. The hexagon mandrels shall be of the size and tolerances given in Tables 4.3.1-1 and 4.3.1.1 M. The square mandrels shall be o the size and tolerance given in Table 43.1-2. The mandrel shall be inserted into the nut

end socket opening to the dept h indicated in the applicable table.

4.3.2 Mandrets for Wrench Openings. The lwxagon mandrels shall be of the size and tolerant-es given in Tables 4:1.1-1. 4.3.1-1 M,

and 4J. 1-2. The mandrel shall be hilly emigaged to the thickness of the wrench head.

Recommended：