Small Hole Tapered Button Bits

Product name: Small Hole Tapered Button Bits.

Application Area: Underground  Mining.

Drilling Hole Dia in mm: Small Hole 28-43.

Steel and Tungsten Carbide Quality: Grade A.

Tapered connection: 6 degree, 7 degree, 11 degree, 12 degree etc.

Pack: Wooden Box.

Dimensions

BIT DIAMETER NOTES

All bit diameters are larger than the given dimensions in the catalog.

Cross bits: Can be a maximum of +1 mm due to manufacturing tolerance.

Button bits: Some bit designs can be a maximum +3 mm to compensate for fast diameter wear.
The minimum diameter for all button bits is +1.5 mm above the given dimensions.

Keep in mind that a bit always drills a bigger hole than the stated bit diameter.