Berntsen's exclusive 2½" countersink drill bit.....a new way to set perfectly recessed concrete markers fast!
"The greatest thing since sliced bread! This countersink drill bit has really made life easier for me." - Jim Frame, Frame Surveying, Davis, CA
Now you can drill the shaft hole and countersink for Berntsen flat or domed markers in one pass! The CD25DRL works with our 2½" diameter concrete markers in both aluminum or bronze. Just drill the 7/8" hole needed for the monument stem, and keep going to ream the proper countersink for a neat looking, long-lasting, recessed monument placement. The countersink will be perfectly aligned, the stem hole will be the proper depth, and you won't have to change drill bits! The CD25DRL fits a SDS-Plus chuck and works with the Bosch 36V Hammer Drill. A spline to SDS adapter is available that allows use with spline hammers. Recommended for hand-held machines weighing less than 30 lbs.
Fits an SDS-Plus chuck
For use with Berntsen C25D & C25DB
concrete markers