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18.6mm U drills combined with a 22mm spot face with a hole chamfer  

Special cutters From GKN Automotive Birmingham

U drill inserts---LCMX 0303s

Spot face inserts---TCMT 09s

Chamfer inserts---TCMT 09s

Drilling depth to spot face is 15mm

25mm Whistle notch shank

Inserts for I/D only, not for sale with this item

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