Relton GRT-5-4 | Straight Shank Masonry Drill Bit 5/16" X 4" Screwbolt+ Engineered for reliability in demanding

Engineered for reliability in demanding assemblies

Material compatibility — Duratec SFB Carbon Steel formulation provides durable edge retention under continuous operation

Diameter: 1-1/4 in

equipment supports

Relton GRT-5-4 | Straight Shank Masonry Drill Bit 5/16" X 4" Screwbolt+ Engineered for reliability in demandingSpecs Diameter: 5 16" (0. 3125") Length: 4" Shank type: Straight Model: Relton GRT 5 4 Pieces per package: 1 Features Precision engineered for masonry drilling to produce clean, accurate holes in concrete, brick, and block Straight shank reduces wobble during setup, promoting steadier entry 4" effective length enables mid depth holes in masonry without overextending the drill Dedicated size that supports repeatable, consistent performance on multiple