The MachinistPost Blog

Drill reconditioning, machining technique, shop management — by machinists, for machinists.

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256 posts  ·  Page 4 of 11
TECHNIQUE
Thread Milling vs Tapping
When thread milling beats tapping and the setup requirements each process demands.
February 5, 2026
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TECHNIQUE
Thread Drilling: Tap Drill Sizing
How to select the correct tap drill size for any thread to hit the right percentage of thread engagement.
February 3, 2026
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EQUIPMENT
Taper Shank vs Straight Shank Drill
When to use taper shank drills versus straight shank and how shank choice affects rigidity and runout.
February 1, 2026
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TECHNIQUE
Surface Finish And Drill Performance
How drill geometry and condition affect the surface finish inside a drilled hole.
January 30, 2026
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TECHNIQUE
Spotting Fake Drill Bit Quality
How to identify counterfeit or misrepresented drill bits before they destroy your production schedule.
January 28, 2026
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EQUIPMENT
Spotting Drills: The Accuracy Tool
How spotting drills improve hole location accuracy and when they are worth adding to your process.
January 26, 2026
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TECHNIQUE
Split Point Drill Geometry
What the split point does to drill performance, when to use it, and what to look for after regrinding.
January 24, 2026
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TECHNIQUE
Speeds And Feeds For HSS Drill Bits
Recommended cutting speeds and feed rates for HSS drill bits in steel, aluminum, stainless, and more.
January 22, 2026
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TECHNIQUE
Speeds And Feeds For Drilling
A practical reference guide to drilling speeds and feeds across common materials and drill diameters.
January 20, 2026
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BUSINESS
SPC Drill Life: Statistical Process Control
How to apply statistical process control to drill life data for predictive maintenance and cost reduction.
January 18, 2026
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BUSINESS
Small Shop vs Production Shop Resharpening
How resharpening strategy and economics differ between small job shops and large production facilities.
January 16, 2026
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TECHNIQUE
Sharpening vs Reconditioning: What Is The Difference
A clear explanation of the difference between drill sharpening and full reconditioning.
January 14, 2026
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TECHNIQUE
SFM Speed And Feed Charts Explained
How to interpret SFM-based speed and feed charts and convert them to practical spindle RPM settings.
January 12, 2026
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BUSINESS
Setting Up An In-House Resharpening Station: When It Makes Sense
The volume thresholds and conditions where investing in an in-house resharpening station pays off.
January 10, 2026
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BUSINESS
Setting Up A New Shop Drilling Program
A complete guide to setting up your shop first formal drilling program from tools to procedures.
January 8, 2026
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BUSINESS
Setting Up A Drill Sharpening Program
How to design and launch a formal drill sharpening program that saves money from day one.
January 6, 2026
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BUSINESS
ROI Of Sharper Drills: Production Math
Working through the math on what sharper drills are worth in reduced cycle time and scrap.
January 4, 2026
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TECHNIQUE
Resharpening vs Reconditioning
The difference between basic resharpening and full reconditioning and how to choose the right service.
January 2, 2026
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TECHNIQUE
Reducing Burr Formation In Drilling
The geometry, parameter, and technique changes that minimize burr formation on drilled holes.
December 31, 2025
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BUSINESS
Reconditioning Intervals: Data-Driven Approach
How to set drill reconditioning intervals based on production data rather than guessing or habit.
December 29, 2025
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TECHNIQUE
Reaming After Drilling For H7 Tolerance
How to select drill and reamer sizes to hit H7 and other tight tolerance holes reliably.
December 27, 2025
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TECHNIQUE
Reamer vs Drill: Tolerances
When to drill to size and when to pre-drill and ream, based on the tolerance your part demands.
December 25, 2025
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BUSINESS
Real Cost Of Dull Drills In Production
Quantifying what dull drills actually cost a production shop in dollars, time, and scrap rate.
December 23, 2025
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TECHNIQUE
Reading Speed And Feed Charts
How to read and apply speed-and-feed charts correctly for consistent, predictable drilling results.
December 21, 2025
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