The Relton screw type anchor drill bit drills the pilot holes that screw-in concrete anchors call for: 5/32 in. and 3/16 in. diameters matched to common anchor sizes, in 3-1/2, 4-1/4, 4-1/2 and 5-1/2 in. lengths. A carbide-tipped, precision-ground cutting edge and screw-type flute design hold the bit steady for straight, accurate holes in concrete, brick and block.
Anchor holding power starts with hole accuracy the precision-ground tip collars without wandering, and the spiral flutes clear dust so anchor threads can bite full depth. For general masonry drilling beyond anchor pilot sizes, the Ram Tip and four-cutter R4X masonry bits pick up from 1/8 in. through 1 in.; find the whole family in our electric hammer line.
- Diameters of 5/32 and 3/16 in. matched to screw type concrete anchor sizes
- Lengths of 3-1/2, 4-1/4, 4-1/2 and 5-1/2 in. for standard and deep-set anchors
- Carbide-tipped, precision-ground cutting edges for fast penetration with low drilling effort
- Screw-type flute design stabilizes the bit and prevents slippage on hole starts
- Spiral flutes evacuate dust to prevent clogging and overheating
- Stocked by Crowder Supply in Denver in all six size combinations