R8 End Mill Tool Holder With Three Eighths Bore And Seven Sixteenths UNF Drawbar Thread, Gauge Length 1.11 In, TIR 0.0004, Not Dual Contact, Milling Tool Mount For CNC Machines, Model 202-5302 By Shars

R8 End Mill Holder with 3/8 Bore and 7/16 UNF Drawbar
✔️ Single tool holder, R8 shank, 3/8 bore, 1.11 in gauge, 0.0004 TIR

This R8 end mill tool holder is designed to secure cutting tools in CNC machines with an R8 spindle, featuring a 3/8 in bore and a 7/16x20 UNF drawbar thread for quick, snug retention.

✅ Shank size: R8
✅ Bore diameter: 3/8 in
✅ Gauge length: 1.11 in
✅ Drawbar thread: 7/16x20 UNF
✅ TIR: 0.0004 in
✅ Dual contact: No

💡 What is an R8 end mill holder used for in a milling setup? This handy guide explains typical use cases and benefits.
- High-precision tool retention for CNC milling with 0.0004 in runout
- Quick tool changes on R8 spindles using 7/16x20 UNF drawbars
- Consistent performance across jobs with a 3/8 bore and R8 shank