Fuller's Type "B" Counterbores are designed to cut clean holes in softwood. Can also be used with stop collars (shown on page 6) to control depth of cut. Counterbores for the flat under the head of nails, spikes and bolts to sink the heads under the surface or deep enough for wood plug to cover the head. Can be set at any point on twist drill and held fast with two hex-socket set screws. Designed for clean cutting and hardened for long life. Can be used in Drill Press, Electric Hand Drill or Bit Brace. Legend below explains sizing. Select your item(s) then click Add to Cart.
- CBD = Cutting Bore Diameter
- CDHD = Center Hole Diameter
- OL = Overall Length
W.L. Fuller Inc. is a family owned, third generation, manufacturer of the best countersinks, counterbores, plug cutters, taper point drills, brad-point drills, and step drills. They have over 60 years of experience in manufacturing tools to cut woods, plastics, and metals.