Combination Drill & Taps Pattern Flush Trim Bit 1/4 8MM Shank Wood Working Tools 1Pcs See the second picture for details Size: 1/4" Shank 1/4*3/8*50 and 1/4*3/8*76 Package including: 1x 50mm Flush Trim Router Bit 1x 76mm Flush Trim Router Bit