TCT (tungsten carbide tipped) annular cutters from 12 mm to 100 mm in ready stock — for magnetic drills and structural steel fabrication. Multi Trade Combines, AT Road, Guwahati.
A TCT (tungsten carbide tipped) annular cutter is the professional hole-making tool used in structural steel fabrication, steel service centres, pipework fabrication and heavy machine assembly. Unlike a standard HSS twist drill that must remove the full circle of material as chips, the annular cutter cuts only the ring around the hole perimeter — leaving a central solid slug that falls out when the cut is complete. This ring-cutting principle reduces the cutting force to a fraction of what a twist drill requires, makes larger holes far faster, and is why the magnetic drill (mag drill) fitted with an annular cutter can make precision holes in steel beams and plates that would require a large floor-standing pillar drill if conventional twist drills were used.
TCT tips are the premium choice over HSS annular cutters for harder or thicker structural steels where HSS tips would wear rapidly. The TCT cutting edges last significantly longer and maintain their geometry, producing cleaner hole edges and more consistent sizing through the tool's life. Multi Trade Combines keeps the 12 mm to 100 mm size range in ready stock at our AT Road, Guwahati counter — the widest annular cutter stock holding in the Northeast. Fabricators working to tight delivery schedules need cutters they can collect the same day.
Ready stock at Multi Trade Combines, AT Road, Guwahati — 12–100 mm
Northeast India's infrastructure boom — BRO road construction in Arunachal Pradesh, NHIDCL highway projects in Nagaland and Manipur, railway bridge fabrication, industrial shed erection in Guwahati's expanding industrial estates, and large commercial building steel structure contracts — all involve drilling large numbers of bolt holes in structural steel members. A magnetic drill fitted with TCT annular cutters is the tool for this task on-site: it clamps magnetically to the steel member, drills accurately without setup marks from a drill press, and can be repositioned rapidly. Structural steel fabricators in their workshops run mag drills continuously on column and beam preparation. The ready-stock range from 12 mm to 100 mm at Multi Trade Combines means any cutter size needed for an urgent job can be collected from our Guwahati counter and taken directly to the fabrication shop or site. We supply to customers across Assam and across Northeast India.
| Category | Welding Machines |
|---|---|
| Key specs | 12 mm – 100 mm · broach cutter / mag drill bit · ready stock |
| Availability | In stock — price on request |
| Diameter range | 12 mm to 100 mm |
| Cutting depth | 55 mm and 75 mm depth versions |
| Tip material | Tungsten carbide tipped (TCT) |
| Shank type | Weldon 19 mm shank for magnetic drill |
| Application | Structural steel, fabrication, pipe and plate hole making |
Multi Trade Combines stocks TCT (tungsten carbide tipped) annular cutters from 12 mm to 100 mm diameter, in standard 55 mm depth and 75 mm depth variants. This range covers virtually all applications encountered in structural steel fabrication, pipe work, plate work and machine base drilling in Northeast India — from small bolt-hole sizes at 12–20 mm up to the large section holes at 80–100 mm required for pipe penetrations and large fastener clearances. Call +91 91812 13332 to confirm specific diameter availability in current stock.
An annular cutter (also called a broach cutter or mag drill bit) cuts only the annular ring of material around the hole perimeter — it leaves a solid slug that drops out when the hole is complete. A twist drill must cut through the entire cross-section of material, removing the full circle of metal as chips. This means the annular cutter requires a fraction of the cutting force and power of a twist drill at the same diameter, produces larger holes faster, and generates much less heat at the cutting edge — extending tool life and allowing the magnetic drill to be a much lighter and more portable machine than a drill press of equivalent hole capacity. For structural steelwork where 20–60 mm holes are common, the annular cutter is the industry standard. WhatsApp +91 76359 98826 for current stock.