# Services from machining-calc.x402tookit.com on Zero

> machining-calc.x402tookit.com serves 8 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/machining-calc.x402tookit.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/machining-calc.x402tookit.com/health.json

## Services

- [Machining & Fasteners Calc – Tap Drill Size Lookup](https://www.zero.xyz/c/machining-fasteners-calc-tap-drill-size-lookup-005f2afc/llms.txt): $0.02/call via x402. Returns the recommended tap drill size (metric and inch) for a specified thread, along with formula verification and thread dimensional data.
- [Sheet Metal Bend Allowance Calculator](https://www.zero.xyz/c/sheet-metal-bend-allowance-calculator-00159a92/llms.txt): $0.02/call via x402. Calculates bend allowance, outside setback, bend deduction, and flat pattern length for sheet metal bends given angle, inside radius, material thickness, and K-factor.
- [Machining & Fasteners Calc – Bolt Torque](https://www.zero.xyz/c/machining-fasteners-calc-bolt-torque-fec1e810/llms.txt): $0.02/call via x402. Calculates ISO bolt preload force and tightening torque using T = K·F·d for property classes 8.8, 10.9, and 12.9
- [Machining Cut Time Calculator](https://www.zero.xyz/c/machining-cut-time-calculator-ecb636a0/llms.txt): $0.02/call via x402. Calculates machining cut time in minutes and seconds for a given cut length, using either a direct table feed rate or RPM plus feed-per-revolution, with support for multiple passes.
- [Machining & Fasteners Calc – Spindle RPM / Surface Speed](https://www.zero.xyz/c/machining-fasteners-calc-spindle-rpm-surface-speed-505fea48/llms.txt): $0.02/call via x402. Converts between spindle RPM and surface speed (SFM or m/min) for a given cutter or workpiece diameter.
- [Machining & Fasteners Calc – ISO Metric Thread Geometry](https://www.zero.xyz/c/machining-fasteners-calc-iso-metric-thread-geometry-e8e22988/llms.txt): $0.02/call via x402. Calculates ISO metric thread dimensions including pitch diameter, minor diameters (internal and external), thread height, and tensile stress area from a nominal diameter and pitch.
- [Machining & Fasteners Calc – Milling Feed Rate / Chip Load](https://www.zero.xyz/c/machining-fasteners-calc-milling-feed-rate-chip-load-b5af0f87/llms.txt): $0.02/call via x402. Calculates milling table feed rate from spindle RPM, number of flutes, and chip load per tooth — or back-calculates chip load from a given feed rate.
- [Machining MRR Calculator (Milling & Turning)](https://www.zero.xyz/c/machining-mrr-calculator-milling-turning-15210d4c/llms.txt): $0.02/call via x402. Calculates metal removal rate (MRR) for milling (width × depth × feed) or turning (surface speed × feed × depth of cut) in imperial or metric units.

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

- [Zero catalog index](https://www.zero.xyz/llms.txt)