Promac Quattro Bore Wood Bits Tile Drilling The top two boxes are

The top two boxes are 60 mm (2 3/8") high

When you want to restore the grindstone to give more effective material removal and coarser sharpening

FEATURES SG TLM2 HB

Older drive wheels manufactured before 1993 have a shallower groove for the drive pin

which SOLA patented in 1969

Promac Quattro Bore Wood Bits Tile Drilling The top two boxes arePromac Quattro Bore Bits are expertly engineered to deliver exceptional performance in woodworking tasks, making them ideal for both professional and DIY projects. Designed with 4 tips and 4 flutes, these bits ensure a faster and cleaner drilling process, especially in hardwood. The 1 4" Hex Quick Change Shank adds convenience, allowing for rapid bit changes, which is perfect for high efficiency work environments. Available in sizes ranging from 10 mm