Why Drill Bits Fail
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Why Precision Grinding Matters
Series: Why Drill Bits Fail | Article 13 Keywords: precision grinding drill bit, full ground drill bit tolerance, h8 drill bit tolerance, drill bit back taper, web taper, drill bit margin grinding, drill bit surface finish, drill bit batch consistency, interference fit d...Read more -
Full Ground vs. Roll Forged: Two Different Ways to Make a Flute
Series: Why Drill Bits Fail | Article 12 Keywords: roll forged drill bit, full ground drill bit, drill bit manufacturing process, hot rolled drill bit forming, drill bit precision comparison, HSS drill bit material grade, M35 drill bit, 4241 drill bit steel, drill bit fo...Read more -
Why Flute Design Affects Chip Evacuation
Series: Why Drill Bits Fail | Article 11 Keywords: drill bit flute design, chip evacuation, drill bit helix angle, parabolic flute drill bit, web thickness, chip packing, deep hole drilling HSS, standard flute vs parabolic flute The last article in this series ...Read more -
Point Angle vs. Different Materials: Why 118° and 135° Both Have a Job to Do
Series: Why Drill Bits Fail | Article 10 Keywords: drill bit point angle, 118 vs 135 drill bit, split point drill bit, HSS drill bit, drill bit selection guide If you sort through enough drill bit inquiries, you notice a pattern. Buyers ask which point angle is "better" ...Read more -
Why 135° Split Point Matters
Series: Why Drill Bits Fail | Article 9 Keywords: 135° split point, split point drill bit, drill point angle, 118° vs 135° point angle, self-centering drill point, chisel edge, drill bit centering geometry The previous article in this series looked at why drill bits walk...Read more -
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