Frequently Asked Questions Search Milling Grooving Parting Holemaking Turning Threading Tool Material Grades Engineering Materials Tool Holding Shop Talk Professional slang Milling in General What is a cutting edge angle and what is a lead angle? What is the difference between "face mill" and "shell mill"? What is the difference between heavy and heavy-duty milling? Which cutting conditions are considered as unfavorable and which are unstable? How is average chip thickness measured? What is high pressure coolant (HPC) and ultra high pressure coolant (UHPC)? What are the benefits of milling with high pressure coolant (HPC)? What is the difference between milling with high pressure coolant (HPC) supply through a tool body and turning with HPC? Does ISCAR provides indexable cutters for high pressure coolant milling in the standard product line? Why are nozzles used as coolant outlets in HPC indexable milling cutters? Why are a significant number of HPC milling cutters special (tailor-made)? Which families are included in ISCAR’s indexable milling line? The logos of various ISCAR’s indexable milling families start with the wording “HELI” (a derivative from “helix”), and phrases such as “helical cutting edge” and “helical milling” are often emphasized as benefits in technical information. Why? Does ISCAR provide indexable milling cutters for machining aluminum? The term “high positive” is often used when speaking about indexable milling cutters. What does it mean? Cemented carbide is a main cutting material for indexable inserts. ISCAR provides a rich variety of carbide grades. Where can I find basic information about the properties of a grade, recommended cutting speeds and application range? Do the indexable milling cutters have internal channels for coolant supply? There are face shell mills that do not have these channels. If an internal coolant supply is necessary, how I can modify the mills? How I can guarantee applying correct torque for tightening clamping screws that secure inserts in the milling cutters? What is better for control productivity – varying the feed or the depth of cut within acceptable limits? How can I find a more efficient indexable milling cutter for my applications? What is turn-milling? What are the advantages of turn-milling comparing with classical turning? How I can calculate cutting data for turn-milling? What is the difference between radial chip thinning and axial chip thinning? What is a slab mill? What is “roll-in entering” a machined workpiece in milling? What are the advantages and disadvantages of clamping inserts in milling cutters by wedge? How to estimate tool life for ceramic cutting tools? What is a router? Flute or chip gullet? Chip breaker or chip former? What is "chip load"? What is the difference between "wiper flat" and "wiper insert"? What is "stepover" and what is "stepdown"? What is the difference between "gang milling" and "straddle milling"? What is an "on-edge" insert? What is the difference between rough milling and finish milling? What are the main types of edge conditions for indexable inserts? What are the advantages and disadvantages of wedge clamping indexable inserts? When should I replace insert clamping screws that secure indexable inserts in the body of a milling cutter? How to determine when to replace an insert (change its cutting edge), on a solid tool or on an exchangeable head? What is the principal difference between a "triangular" and "trigon" indexable insert? What is the main design feature of a TANGFIN indexable face mill for superb finish of a machined surface? Within its range of products, ISCAR has a few families of small-sized milling cutters carrying miniature indexable inserts. What is the main field of their application, and what advantages can these cutters provide? What is the difference between semi-roughing and semi-finishing in milling? What is an integral collet? Do ISCAR's integral collets have internal coolant channels? What is abreast milling? What is the pitch of a milling tool?