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Straight shank machine reamer H7 new standard M1 to 1.8 micro high speed steel HSS reamer precision non-standard custom-made new products

Executive GB1132-84/GB1132-73. Material W6542 high speed steel.

price:USD$11.00
discount 70% in 2018-09-17 to 2018-09-19
price: USD$ 7.70
freight :USD$18.00,(Express)
freight :USD$7.00,(Postal parcel)
Minimum Order Quantity:2
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Straight shank machine reamer 

H7  The new standard

H8 new standard

H9 new standard

Old Dmark

Old D4mark

Old D5mark

 

Note: if necessary, pleaseContact sellerConfirmation postPurchase specifications. In order to prevent the pro pats goods, someThe reason of stock specifications. Please contact the pro and price.Modify the freight, modify the freight, modify the freightImportant things to say3Times!! )

 

Accuracy of machine reamer:D/D4 /H7/H8/H9

 

D/D4Class isOld standard accuracy

 

 

H7/H8/H9yesNew standard precision

 

Reamer tolerances are generally increased in size (commonly known as silk)

Grade D increases 0.01 mm.D4Increase 0.02 mm

H7Increase 0.005 - 0.01 mm

H8Increase 0.001 - 0.015 millimeters

H9Enlarge0.02 mm.The blade is H long than D prefect