The everyday toolbox for the machinist
Decode insert codes, find our equivalent of another brand’s part, work out speeds, feeds and tap drills, and look up the charts you reach for every day. All free.
In your pocket all day, every day. Install the free Teravin app and the calculators and charts open in one tap, and they keep working on the shop floor even when you’ve got no signal.
Insert code decoder
Type any ISO insert code, metric or inch, and see what each part means, plus the matching Korloy inserts we supply.
Decode an insert →Cross-reference
Using another brand’s insert, toolholder or boring bar? Enter its code to find the matching items in our range.
Find our equivalent →Machining calculators
Speeds and feeds for turning, milling and drilling, plus a tap drill calculator and thread chart.
Open the calculators →Material cross-reference
Look up any steel, stainless, cast iron, aluminium or superalloy by W.Nr., EN, DIN or AISI name and see its ISO group.
Find a material →Hardness converter
Convert between Rockwell C, Rockwell B, Vickers and Brinell, with approximate tensile strength.
Convert hardness →Fits and tolerances
Hole and shaft limits, clearance and interference for H7/g6, H7/p6 and other ISO fits, any size to 500 mm.
Work out a fit →Surface finish
The Ra and Rt to expect from your feed and nose radius, the feed for a target finish, and N grades.
Check a finish →Workshop wall charts
Twelve free A3 charts to print for the shop floor: tap drills, speeds and feeds, insert codes, fits, hardness and more.
Download the charts →A guide only. These tools and figures are general starting points, not a guarantee for your job. Results depend on your machine, setup, material and tooling, so always check against the tool maker’s data, and talk to a Teravin sales engineer to make sure it’s right for your application. Call +61 8 9345 2099 or ask us. See our terms of use.