Diablo SPEEDemon 3/16 In. x 6 In. Red Granite Carbide Rotary Hammer Drill Bit (5-Pack) Brand_Ragan & Massey comes with an insulation ring

comes with an insulation ring to cut drafts where the pipe slips through the thimble

for up to 99% protection from harmful UVA and UVB rays

Sheet Metal & Aluminum

Extra-thick foam walls and insulated lid for best-in-category cooling performance

Diablo SPEEDemon 3/16 In. x 6 In. Red Granite Carbide Rotary Hammer Drill Bit (5-Pack) Brand_Ragan & Massey comes with an insulation ringDiablo made carbide tip withstands impact & high heat applications for superior life versus standard masonry hammer drill bits Multi ground Grip Point Tip delivers stability & accuracy required for fast, precise holes Hi performance brazing & hardening process extends life of carbide tip & increases productivity Optimized flute design removes dust faster, keeping the carbide tip cooler for ultimate strength & durability Impact Strong increases shank