These Fuller Type "R" Counterbore sets have extension lip pattern cutting edges This cuts a clean hole without tearing woods or plastics. Made of Stainless Steel, hardened enough to hold an edge and yet can be sharpened with a file. Type ‘R’ Counterbores can counterbore deep enough for a wood plug over the head of the screw or rivet. 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.