Turning Indexable Inserts How to read pages of “Turning Inserts” B13 ■ Inserts for Back Turning (Small Tools) B 1(: P Free-cutting steel Carbon Steel / Alloy Steel Q P P P Toolholders M Stainless Steel P Q P P K Gray Cast Iron Q Nodular Cast Iron P Insert (Turning) N Non-ferrous Metals Q Page for Applicable S Heat-resistant Alloys P Q P P Titanium Alloys Q P ● For KTKF toolholder H Hard Materials MEGACOAT PVD Dimension (mm) MEGACOAT NANO Coated Carbide Carbide Insert Description PR1425 PR1535 PR1225 PR1025 KW10 Ref. to W a B rε T H φd Photo shows Right-hand rH B Id TKFB 12R15005M 1.5 0.25 2.6 <0.05 N N N N N a W T 12R28005M <0.05 3.0 8.7 5.2 N N N N N 4° 60° 2.8 0.3 4.6 12R28010M <0.1 N N N N N H TKFB 16R38005M <0.05 N N N N N 3.8 0.3 6.3 4.0 9.5 5.2 ● Right-hand shown 16R38010M <0.1 N N N N N rH B E12 a TKFB 12L28005MR <0.05 N N W T 2.8 0.3 4.6 3.0 8.7 5.2 4° 60° Id 12L28010MR <0.1 N N H TKFB 16L38005MR <0.05 N N 3.8 0.3 6.3 4.0 9.5 5.2 ● Left-hand shown 16L38010MR <0.1 N N · Insert whose corner-R(rε) dimension expressed with less than sign (e.g. < 0.05, < 0.1, < 0.2 etc.) indicate models with minus tolerance for corner-R(rε). ● Inserts Identification System (Ref. to Tables 1 and Table1 2) Small machining General purpose Large machining TKFB 12 R 15 005 MR 1.5 2.8 3.8 Insert Type Insert Size Corner-R(rH) 2.6 4.6 6.3 Insert Hand Insert width Indicates the corner-R(rH) R: Right-hand has a minus tolerance L: Left-hand Hand of Cutting Lead Angle TKFB12R15.. TKFB12R28.. TKFB16R38.. R: Right-hand Table 2 Toolholder Right-hand (R) Toolholder Left-hand (L) Insert Right-hand (R) Insert Left-hand (L) Lead angle Right-hand (R) Lead angle Right-hand (R) B92 Inserts are sold in 10 piece boxes ●:Std. Item