MAXBOR

MAXBOR Annular Cutter Range — Quick Reference (Mag Drill Accessories)

MAXBOR = specialist annular cutter + magnetic drill accessory brand. Annular cutters + cutter arbors + drill chucks + mag drill accessories. For structural steel + plate + heavy fabrication where mag drill + annular cutter setup outperforms twist drills.

Why MAXBOR: Annular cutters cut hollow plug from material = removes ~80% less metal than twist drill = much faster + less work-hardening + cleaner hole. Pilot pin centres + ejects slug. Critical: Use coolant (oil drip or flood) + correct RPM for material thickness + ALWAYS use mag drill safety chain backup. Brand: MAXBOR. Companion: annular cutters, magnetic drills, cutting lubricants.

MAXBOR Annular Cutters, Cutter Arbors, Drill Chucks & Magnetic Drill Accessories

MAXBOR is a specialist annular cutter and magnetic drill accessory brand producing high-speed steel and tungsten carbide tipped annular cutters, cutter arbors, Morse taper and Weldon adapters, drill chucks, ejection pilot pins, cutting fluid, and magnetic chip collection accessories for magnetic base drilling machines used in structural steel fabrication, construction, heavy engineering, maintenance, and mechanical services installation.

The annular cutter is the correct hole-cutting tool for any structural steel application where twist drills are used by default — and understanding the difference in productivity and tool life between the two methods is essential for workshop managers and tradespeople who regularly cut holes in steel plate, column flanges, beam webs, and RHS sections.

A twist drill removes the full disc of metal from the hole centre outward, requiring the motor to drive the entire drill body through solid material with progressively increasing torque and heat accumulation as diameter increases.

An annular cutter removes only a thin ring at the hole perimeter, producing a clean-walled hole with no pilot drilling step, significantly less motor load, less heat generation per hole, faster cycle times per hole, and substantially longer tool life per hole compared to twist drills of equivalent diameter.

With structural steel diameters from 16mm upward, annular cutters on a magnetic base drill machine typically outperform twist drills on a standard drill press on every metric that matters: speed, accuracy, surface finish, tool cost per hole, and operator effort.

MAXBOR’s range covers both short-series cutters for standard plate and sections and long-reach cutters for deep-flange structural steel sections, with arbor adapters for the most common magnetic drill collet configurations and Weldon flat-drive shank standards.

Cutting fluid and magnetic chip collectors complete the kit for productive and clean annular cutting operations.

AIMS Industrial sells MAXBOR annular cutters, arbors, drill chucks, pilot pins, cutting fluid, and chip collectors for direct online ordering with fast Australia-wide delivery.

Order your MAXBOR magnetic drill accessories today.

MAXBOR Annular Cutters — HSS & Tungsten Carbide Tipped

MAXBOR cutters are available in high-speed steel for general mild steel work and tungsten carbide tipped for harder steels, stainless, and abrasive structural materials where HSS cutter life is commercially insufficient for the volume of holes required. Short-series cutters cover standard plate and section thicknesses in the most common structural hole diameters, while the 110mm long-series HSS cutter extends reach to deep-flange structural sections, heavy plate, and multi-layer steel stacks that exceed the cut depth of standard cutters. The 8-piece short-series set provides a practical range of common hole diameters for fabrication operations requiring multiple sizes within a single project.

• MAXBOR Annular Cutter DOC Tungsten Carbide Tipped: A tungsten carbide tipped annular cutter for the highest-demand hole-cutting applications in hardened structural steel, stainless steel, cast iron, and abrasive alloys where HSS cutters would rapidly lose cutting edge geometry and require frequent replacement. TCT cutters maintain edge integrity and cutting geometry across extended run cycles in materials that generate high cutting temperatures and abrasive wear at the cutter tooth face, providing significantly more holes per cutter life in hard and high-alloy steels where HSS cutter cost per hole becomes commercially prohibitive.
• MAXBOR 110mm Long Annular Cutter HSS Black Oxide: A 110mm long-series HSS annular cutter in black oxide finish for drilling through deep-flange structural sections, heavy plate, multi-layer steel stacks, and beam webs where a standard short-series cutter body cannot reach full cut depth before the cutter shank shoulder contacts the workpiece surface. The extended body provides the 110mm depth of cut required for structural I-beam and H-beam flanges, heavy-wall RHS, and thick plate applications that are beyond the reach of standard series cutters in the equivalent diameter.
• MAXBOR Annular Cutter Set Short Series — 8 Pieces: An 8-piece short-series annular cutter set covering a selection of common hole diameters for structural steel fabrication, bracket and fixing installation, and mechanical services conduit and pipe penetrations through structural sections in building and construction applications. The set format provides the most commonly required hole diameters in a single purchase at a better per-unit cost than individual cutter purchases, and ensures a matched range of cutter sizes is available for the variety of hole diameters required across a standard fabrication or construction programme.

MAXBOR Cutter Arbors, Pilot Pins, Drill Chucks & Accessories

MAXBOR’s arbor and accessory range ensures cutter-to-machine compatibility, clean hole ejection, and optimal cutting conditions for productive and accurate magnetic drill operations on structural steel.

Correct arbor selection — MT3 Morse taper or Weldon flat-drive to match the mag drill spindle configuration — is essential for reliable torque transmission on deep cuts where poorly coupled cutters can slip or disengage.

Cutting fluid applied to the cutter OD before and during the cut is critical for extended cutter life and consistent hole wall surface finish, making the MCL500 cutting fluid and magnetic chip collector practical complements to every cutter purchase for structural steel fabrication operations.

• MAXBOR 1-1/4" Cutter Arbor Adapter MT3 31.75mm Weldon: A cutter arbor adapter with an MT3 Morse taper shank for magnetic drills with Morse taper spindles and a 1-1/4" Weldon flat-drive cutter socket for standard annular cutter shanks. The Weldon flat-drive transfers cutting torque through a positive flat engagement rather than relying solely on collet friction, providing more reliable torque transmission on deep cuts where the cutter experiences lateral and torsional loading from chip packing and hard-spot contacts in structural steel.
• MAXBOR MT3 Arbor with 3JT Mount: An MT3 Morse taper arbor with a No.3 Jacobs taper (3JT) mount for fitting standard keyed drill chucks to MT3-spindle magnetic drills. Allows use of standard drill chucks, countersink holders, and other Jacobs-taper shank tooling on MT3 mag drill spindles for conventional twist drilling and countersinking tasks alongside annular cutting operations without requiring a separate dedicated machine setup for each tool type.
• MAXBOR Cutter Arbor Extension 100mm: A 100mm cutter arbor extension for increasing the reach between the magnetic drill spindle face and the cutter cutting entry face, required for drilling holes in recessed locations, behind flanges, inside box sections, and in areas where the magnetic drill body cannot be positioned close enough to the work surface for a standard-length arbor to reach the cutting zone with the drill magnet engaged on a suitable flat surface adjacent to the hole location.
• MAXBOR Morse Taper Drill Chuck Heavy Duty: A heavy-duty Morse taper keyed drill chuck for mounting in magnetic drill spindles to hold standard twist drills, step drills, countersinks, and reamers when conventional drilling operations are required alongside annular cutter work in the same structural steel setup. The Morse taper provides positive self-locking registration in the machine spindle taper under drilling thrust loads, maintaining concentricity and repeatability for accurate hole placement across multiple drilling operations in the same setup.
• MAXBOR Drill Chuck 1/2" (13mm) and Key: A 13mm capacity keyed drill chuck for holding twist drills, countersinks, and step drills up to 13mm shank diameter in magnetic drill and drill press applications. Supplied with the matching chuck key for secure tightening and rapid release during drill size changes in production and maintenance drilling setups. The keyed chuck provides a more positive grip on smooth shank drills than keyless chucks under the lateral forces generated in structural steel drilling.
• MAXBOR 82mm Reduced Shank Ejection Pilot Pin: An 82mm length ejection pilot pin with reduced shank diameter (4.2mm/4.8mm) for use in annular cutters requiring a shorter pilot reach to the workpiece surface — particularly when cutting through thin material where a full-length pilot pin would contact the reverse face before the annular cutter completes the hole at full depth. The pilot pin centres the cutter on the pre-drilled pilot hole and ejects the slug when the cut is complete, and the reduced shank version fits the standard pilot bore in MAXBOR and compatible annular cutters where the shank fits without modification.
• MAXBOR MCL Cutting Fluid 500ml: A purpose-formulated cutting fluid for annular cutter and magnetic drill hole-cutting operations in structural steel, providing boundary lubrication at the cutter-tooth-to-workpiece interface to reduce heat generation, extend cutter edge life, improve hole wall surface finish, and reduce the tendency for cutter edge built-up edge formation at cutting temperatures. Applied by brush or spray to the cutter OD and pilot pin before starting the cut and reapplied during long-duration cuts in heavy plate and thick structural sections where heat accumulation is highest.
• MAXBOR Magnetic Chip Collector: A magnetic chip collector for capturing steel swarf, chips, and slug fragments produced during annular cutter operations on ferrous structural steel materials. Prevents steel chips from contaminating the workpiece surface, the magnetic drill base area, and adjacent work surfaces during cutting operations, reducing the risk of chip re-cutting under the cutter body, improving workplace cleanliness, and preventing hot chip scatter during overhead and vertical structural steel drilling operations where chips fall into work areas below.

Buy MAXBOR annular cutters and mag drill accessories at AIMS Industrial alongside our range of Magnetic Drills & Cutting Lubricants.

Order online, Contact our team for assistance or to Request a quote.