💰 INTERACTIVE CALCULATOR

Deep Hole Drilling Cost-Per-Hole Calculator

Estimate the fully-loaded cost of one deep hole: machine time, tooling, and scrap — with a cost-per-hole breakdown you can use to compare methods or build a make-vs-buy case.

CALCULATOR

Cost Per Hole

Machine hourly rate ($/hr)

Cycle time per hole (min)

Tool cost per edge ($, new or regrind)

Holes per tool edge

Scrap / rework rate (%)

Method (for typical tool-life reference)

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Total cost per hole ($)

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Machine cost share ($)

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Tooling cost share ($)

Tooling share scales by method: BTA indexable inserts run fewer holes per edge; gundrills are reground many times. Adjust "holes per tool edge" to your real data.

HOW TO USE

Reading the Result

💡 Cost model: Cost per hole = machine cost (rate × cycle/60) + tooling cost (tool cost ÷ holes per edge) + scrap cost (subtotal × scrap%). The tooling share uses your method's typical edge-life multiplier. Replace all values with your own machine, tooling, and quality data.

⚠️ The biggest hidden lever is utilization: a machine that runs 40% of the time costs 2.5× per hole vs the same machine at 100%. See Cost Per Hole Analysis for the full model and Make vs Buy for the decision framework.