Hot Tap Drill Bits for Pipeline Tapping Machines

A hot tap is a method of connecting a new branch line, valve, or fitting to an existing pressurized pipeline without interrupting the flow of the fluid inside. Using a tapping machine fitted with a cutter and pilot drill, technicians bore through the pipe wall while it stays fully operational, avoiding costly service shutdowns.

Yes, friction from cutting generates heat, and hot tap cutters are specifically designed to handle this. Carbide tipped, HSS tipped, and diamond segment cutters use deep tooth profiles and durable tip materials to manage heat buildup and prevent excess material accumulation during extended cutting operations on pressurized pipelines.

Schallert Enterprises manufactures cutters ranging from small taps up to 12 inches, medium taps from 13 to 24 inches, large taps from 25 to 66 inches, and extra-large cutters up to 72 inches in diameter. Cutters can also be custom manufactured to adapt to virtually any tapping machine and application requirement.

Yes, diamond segment cutters are specifically designed for tapping into concrete lined pipes, a common material in large water and wastewater infrastructure. These cutters are available up to 72 inches in diameter and can be adapted to fit most tapping machines used in the field.

Carbide tipped cutters are the most versatile, suitable for tapping into most pipeline materials up to 72 inches in diameter. HSS tipped cutters are optimized specifically for steel lines, up to 48 inches in diameter. Both feature a deep tooth profile that prevents excess material buildup during cutting.

Pilot drills are available in a wide range of diameters, styles, and lengths, including threaded, push style, and twisted flute options, allowing them to fit virtually any tapping machine. Replaceable spade tips in HSS, carbide, or super cobalt cover almost any tapping application, and catch wires guarantee coupon retention.