The MachinistPost Blog

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

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256 posts  ·  Page 9 of 11
EQUIPMENT
Drill Press Runout: How To Measure
A step-by-step method for measuring drill press spindle and chuck runout with a dial indicator.
June 10, 2025
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EQUIPMENT
Drill Press Precision: Eliminating Variables
How to systematically eliminate the variables that rob your drill press of precision and repeatability.
June 8, 2025
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TECHNIQUE
Drill Point Thinning Explained
What web thinning does to drill point geometry, why it matters, and how it affects cutting action.
June 6, 2025
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TECHNIQUE
Drill Point Symmetry: How To Check
Simple methods for verifying drill point symmetry on the shop floor before running a critical hole.
June 4, 2025
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TECHNIQUE
Drill Point Regrinding Tolerances
What tolerances matter in drill point regrinding and how tight they need to be for reliable performance.
June 2, 2025
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TECHNIQUE
Drill Point Grinding Angles And Geometry
The key grinding angles that define a properly sharpened drill point and what each angle controls.
May 31, 2025
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TECHNIQUE
Drill Point Geometry: Conventional, Split, Notched
Comparing conventional, split, and notched drill points to match geometry to application.
May 29, 2025
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BUSINESS
Drill Performance Benchmarking: Holes Per Regrind
How to measure and track holes per regrind as a reliable KPI for drill performance and program ROI.
May 27, 2025
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TECHNIQUE
Drill Nomenclature: Complete Parts Reference
Every term used to describe twist drill geometry and construction, with clear definitions and context.
May 25, 2025
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BUSINESS
Building A Drill Maintenance Program
How to design and implement a formal drill maintenance program that reduces tooling spend over time.
May 23, 2025
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BUSINESS
Drill Inventory: Job Shop vs Production
How drill inventory strategy differs between job shops and high-volume production environments.
May 21, 2025
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TECHNIQUE
Drill Inspection: What To Check Before Every Job
A fast, systematic drill inspection routine that catches problems before they become scrapped parts.
May 19, 2025
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TROUBLESHOOTING
Drill Failure Root Causes
The most common root causes behind drill failure and the corrective actions that actually fix them.
May 17, 2025
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TROUBLESHOOTING
Drill Failure Analysis: Broken Tool
How to perform a root-cause failure analysis on a broken drill bit to prevent repeat failures.
May 15, 2025
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MATERIALS
Drill Coatings: TiN, TiAlN, TiCN Compared
A detailed performance comparison of the three most common drill bit coatings across real-world materials.
May 13, 2025
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EQUIPMENT
Drill Chuck vs Collet: Application Guide
When to use a drill chuck versus a collet holder and how each choice affects runout and life.
May 11, 2025
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TECHNIQUE
Drill Chart: SFM To RPM Conversion
A practical SFM-to-RPM drill chart covering common diameters and materials for quick shop-floor reference.
May 9, 2025
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TROUBLESHOOTING
Drill Bit Wear Patterns
How to read drill wear patterns to diagnose speed, feed, and geometry problems before tools fail.
May 7, 2025
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BUSINESS
Drill Bit Storage And Organization
Organizing your drill inventory for fast access, accurate tracking, and zero lost or misidentified bits.
May 5, 2025
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BUSINESS
Drill Bit Storage Best Practices
How to store drill bits to prevent edge damage, corrosion, and costly mix-ups on the shop floor.
May 3, 2025
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TECHNIQUE
Drill Bit Sizes: Complete Guide
Fractional, number, letter, and metric drill sizes explained with charts and practical selection guidance.
May 1, 2025
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BUSINESS
Drill Bit Resharpening vs Buying New: The Math
Running the actual numbers on resharpening vs replacement to find your shop break-even point.
April 29, 2025
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TECHNIQUE
Drill Bit Reconditioning vs Resharpening
The difference between basic resharpening and full reconditioning, and when each is the right choice.
April 27, 2025
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TECHNIQUE
Drill Bit Point Geometry
How point angle, lip relief, and chisel edge geometry affect drilling performance and tool life.
April 25, 2025
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