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Tooling Technology

Custom Drill: How to Quote the Right Geometry (Diameter, Depth, Coolant)

March 31, 20266 min czytaniaAutor: Solid Carbide Direct
1 mm coolant-through solid carbide drill demonstrating micro coolant capability

A custom drill is easiest to quote when you specify depth, coolant, and tolerance targets. Use this RFQ checklist to get a stable drilling tool faster.

When buyers search for “custom drill”, they usually need a tool that controls chips and heat better than standard geometry, or a diameter/length combination that is not available in catalogue form. A concise RFQ prevents back-and-forth and speeds up the first article.

RFQ Checklist for a Custom Drill

  • Diameter and depth ratio (e.g. 8D, 12D) plus required flute length.
  • Material and hardness; interrupted features; through vs blind holes.
  • Coolant method and available pressure/flow for through-coolant tools.
  • Point style requirement and tolerance/finish targets.
Send your diameter, depth, and material. We will recommend geometry and quote quickly.
Request a Quote

Related Products — Drills

Coolant-Thru Drills — 3D to 25D

Through-coolant drills for deep holes and stable chip evacuation.

Solid Carbide Drills — 3D / 5D / 8D

Production drills for standard depth ratios and general materials.

All Drills Overview

Browse drill families and decide what must be customized.

See Custom Tooling Real Cases

Photos and examples across drills and specials: https://solidcarbidedirect.com/custom-tooling-cases

Tagi

custom drillcustom drill bitscustom carbide drillscoolant drilldeep hole drillinghole tolerancechip evacuationfactory direct drilling
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