Knowledge Base

Machining Guides & Reference Charts

Selection tools and reference material to help you pick the right tool the first time — from our cutting-tool lines, free to use.

Threading & Tapping

1 guide

Interactive guide

Tap Selection Guide

Choose the right Dormer Pramet tap by material or geometry — the colour-coded Shark range, spiral point and flute, straight flute and special-purpose taps, with every part code linked to live stock.

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Turning

2 charts

PDF

Turning Chipbreaker Guide

Match the right Pramet turning chipbreaker to your operation — roughing, medium or finishing — and your workpiece material, for reliable chip control and surface finish.

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PDF

Turning Grade Chart

Pramet carbide grade reference for turning — grade descriptions and ISO application ranges (P, M, K, N, S, H) to help you pick the right insert grade for the material.

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Materials & Reference

1 chart

PDF

Workpiece Material Groups (WMG)

Dormer Pramet's colour-coded ISO material classification — steel (P), stainless (M), cast iron (K), non-ferrous (N), high-temp alloys (S) and hardened (H) — with subgroups, hardness ranges and example grades. The key to reading grade charts and cutting data.

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Need a hand choosing?

Tell us the material, operation and the result you're after, and we'll point you to the right tool and grade.