[Cermet / Coated Carbide / Carbide] How to read pages of “Turning Inserts” B13 P Free-cutting steel Ref. to Page for Applicable Toolholders Carbon Steel / Alloy Steel Q P P M Stainless Steel P Q P B K Gray Cast Iron Nodular Cast Iron N Non-ferrous Metals S Heat-resistant Alloys P Q P Titanium Alloys Q ● For KTKF toolholder (GQ Chipbreaker) 1(: H Hard Materials Insert (Turning) Dimension (mm) MEGACOAT MEGACOAT NANO Insert Description PR1425 PR1535 PR1225 W a B rε T H φd θ Handed Insert shows Right-hand TKFB 12R28005P-GQ 0.05 N N N 0.4 rε B φd 2.8 1.5 4.6 3.0 8.7 5.2 74° W a T 4° 12R28015P-GQ 0.15 N N N 15° θ TKFB 16R38005P-GQ 0.05 N N N H 3.8 1.8 6.3 4.0 9.5 5.2 72° 16R38015P-GQ 0.15 N N N Polished E12 TKFB 12R28005-GQ 0.05 N N N 0.4 rε B φd 2.8 1.5 4.6 3.0 8.7 5.2 74° W a T 4° 12R28015-GQ 0.15 N N N 15° θ TKFB 16R38005-GQ 0.05 N N N H 3.8 1.8 6.3 4.0 9.5 5.2 72° 16R38015-GQ 0.15 N N N ● Inserts Identification System TKFB 12 R 28 005 P -GQ Insert Type Insert Size Corner-R(rH) GQ Chipbreaker Insert Hand Insert width Polished R: Right-hand ● Applicable Chipbreaker Range TKFB12R28...GQ TKFB16R38...GQ (mm) (mm) 6 6 5 5 ap (mm) 4 ap (mm) 4 3 3 2 2 1 1 0.1 0.2 0.1 0.2 f (mm/rev) f (mm/rev) Inserts are sold in 10 piece boxes B93 ●:Std. Item