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K0 ( Mining Bits )

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Type K0

Type K0 for making chisel cemented carbide drill bits.

Unit: mm

TypeDimension
LHSRαβγe
K0-9500720.015.07.0180.0110o3o//
K0-9500822.0//
K0-9700424.013.0//
K02636.018.08.0//
K0-9700528.013.07.5//
K02818.08.0//
K0-9901330.013.07.0//
K03018.08.0//
K0-9950130.212.2//
K0-9800932.012.0//
K03218.0//
K0-9801433.016.09.2//
K0-9901134.012.08.040o1.5
K03418.010.0//
K0-9901536.013.57.5//
K0-9800536.014.59.0//
K03618.010.0//
K0-9100838.011.0//
K0-9800714.59.0//
K0-9300215.08.0//
K03839.018.010.0//
K0-9150140.017.3//
K0-9903013.59.0//
K040B15.010.0//
K0-9600717.09.5//
K04018.010.0//
K0-9100641.012.0//
K0-9600942.012.510.0//
K0-9601313.59.2//
K0-9400243.015.09.0//
K015B10.0//
K04444.018.0//
K0-9300646.015.0//
K04618.0//
K0-7600120.012.0//
K0-76003//
K04949.018.010.0//
K05151.0//
K0-7600260.022.0//

Technical Requirements

Allowable deviation in the size and shape of the cemented mining bits should be comply with following:

a. The flatness of the blank supporting plane should not more than 0.1mm, and flatness of non supporting plane should comply with the following:
    Unit: mm
ThicknessLength
10~20>20~40>40
Flatness
60.120.250.30
>6~100.100.200.25
>10~200.080.150.20

b. The allowable deviation of the length (L), height (H), diameter (D) should comply with the following. Among which, the allowable deviation of the length (L) of Model K10 is 0~+1.0mm; the allowable deviation of the height (H) of Model K10, K20, K21, K23 is -0.8~+0mm, and for the thickness (S) is -0.5~0mm; the allowable deviation of the height (H) of Model K0, K20, K21, K23 is -0.5~+0.2mm, and for the thickness (S) is -0.6~0mm.

    Unit: mm
Basic DimensionAllowable Deviation
Ordinary GradeAdvanced Grade
>5.0~11.0±0.25 
>11.0~18.0±0.50±0.35
>18.0~26.0±0.60±0.40
>26.0~34.0±0.80±0.45
>34.0~45.0±1.00±0.50
>45.0~55.0±1.10±0.60

The allowable deviation of the angle of the mining bits should comply with the following:  
 
AngleAllowable Deviation
≤5o0o~+1o
>5o~15o±1o
>15o±2o

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