4 of these bits broke about 1/3 inch from the cutting edge. There were no chips either, the material liked to roll over the drill bit. Bit geometry is said to be poor and I wasn't impressed with mostly pretty junk.
OSCARBIDE Carbide Turning TCMT090204 Replacement
4 Review
431 CNMG 331 TNMG WNMG
3 Review
π Suppliers of Tungsten Carbide Cutter Inserts
Machining Stainless with the GBJ S12M SCLCR06 CCMT060204: Enhanced Precision and Efficiency
POWERTEC 62-Inch 8-Inch Blade - Model 13132X
12 Review
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10 Review
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11 Review
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