Why Drill Bits Fail
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Why Drill Bits Walk
Series: Why Drill Bits Fail | Article 8 Keywords: drill bit walking, drill bit wandering, off-center drilling, drill point geometry, chisel edge centering, drill bit runout, oversized hole The last three articles in this series dealt with heat treatment: why hardness mat...Read more -
How to Evaluate Drill Bit Heat Treatment Quality
Series: Why Drill Bits Fail | Article 7 Keywords: drill bit heat treatment quality, how to evaluate drill bit quality, HSS drill bit hardness verification, drill bit HRC testing, drill bit quality inspection In the last two articles, we looked at why hardness (HRC) matte...Read more -
Why HSS Drill Bits Chip or Break Instead of Wearing Down
Series: Why Drill Bits Fail | Article 6 Keywords: drill bit chipping, drill bit breakage, HSS drill bit failure, drill bit toughness, drill bit heat treatment quality, drill bit snapping, drill perpendicularity In our previous article, we looked at...Read more -
Why HSS Drill Bit Hardness (HRC) Matters in HSS Drill Bits
Series: Why Drill Bits Fail | Article 5 Keywords: HSS drill bit quality, drill bit weight, drill bit hardness, HSS density, drill bit quality inspection, how to evaluate drill bits Many buyers evaluating drill bit quality ask a seemingly simple question: “What’s the hard...Read more -
Why Some Cobalt Drills Fail Quickly
Series: Why Drill Bits Fail | Article 4 Keywords: why cobalt drills fail quickly, HSS-Co drill performance, cobalt drill bit life, M35 vs M42 drill bits, stainless steel drilling problems, drill bit heat treatment, drill bit grinding accuracy, drill bit wear causes, how ...Read more -
Why Weight Cannot Identify HSS Quality
Series: Why Drill Bits Fail | Article 3 Keywords: HSS drill bit quality, drill bit weight, drill bit hardness, HSS density, drill bit quality inspection, how to evaluate drill bits Some buyers weigh drill bits when evaluating a new supplier’s samples. The heavier the bit...Read more -
Why M35 Is Not Always “Real M35″
Series: Why Drill Bits Fail | Article 2 Keywords: M35 cobalt drill bits, HSS M35, cobalt drill bit quality, drill bit material verification, M35 vs M2 When buyers specify M35 cobalt drill bits, they are making a reasonable decision. M35 — high speed steel with approximat...Read more -
Why Good Steel Is Only the Beginning
Series: Why Drill Bits Fail | Article 1 Keywords: HSS drill bits, M35 cobalt drill bits, drill bit material quality, drill bit manufacturing, high speed steel When buyers ask about drill bit quality, the first question is almost always about material. “Is it HSS?” “Is it...Read more