US$ 24.99
3/8X1/4" with a 1/4" diameter shank
the finer the grit
Bore with reduction ring mm: 16
The Dremel SC544 EZ SpeedClic Wood Cutting Wheels now cut 1/2″ wood and laminate
Tool-Co | Tungsten Carbide M22 Core Drill Bit 50mm | TCTBB050P instockbpm 3/8X1/4" with a 1/4" diameterTCT Core bits DIY Economy (M22) For drilling into general masonry, no hammer action needed