10pcs STM27L Thread Shim – Premium Carbide Internal Thread Shim for CNC Tool Assembly DNGA150408 A65 M: Tolerance class - High-precision

M: Tolerance class - High-precision industrial manufacturing standards

"Solid tool" - Hiroshi M

and the difference in rigidity when facing off 4140 stock is night and day

TT8020 (General Grade)

25 mm/rev Gray Cast Iron (ISO K) 200 - 400 m/min 0

10pcs STM27L Thread Shim – Premium Carbide Internal Thread Shim for CNC Tool Assembly DNGA150408 A65 M: Tolerance class - High-precisionProduct parameters: Specification : STM27L Screw material : Cemented Carbide Side length : 27mm Package includes : 10 Shim STM27L Thread Shim Durable Carbide Shim with Internal Thread for CNC Tool Assembly High Precision STM27L Carbide Shim 27mm Internal Thread Shim for Enhanced CNC Lathe Tool Setup STM27L Internal Thread Shim Hardened Carbide Shim for Accurate, Long Lasting CNC Tool Assembly