Magnetic Drills, Annular Cutters & Metal Hole-Cutting Tools

Need to put an accurate hole through steel without taking the workpiece back to a pedestal drill? ITM Holemaker covers magnetic drilling, annular cutting & specialised metal hole-making equipment for steel fabrication, engineering, maintenance, construction & workshop applications.

The Holemaker range extends well beyond the magnetic drill itself. Industrial Shed carries Holemaker annular cutters, pilot pins, countersinks, drill chucks, cutting fluids, hole saws, carbide burrs, hydraulic punches & supporting cutting tools. For accurate setup, Calipers (Digital / Manual) support dimensional checks while Personal Protective Equipment covers suitable protection for drilling, cutting & fabrication work.

Choosing ITM Holemaker equipment starts with the material, required hole diameter, cutting depth, available access & machine interface. Matching those factors before cutting helps narrow the choice between magnetic drills, HSS annular cutters, TCT cutters, twist drills, countersinks, punches & other Holemaker tooling.

What Is ITM Holemaker?

Holemaker is ITM's specialist range of magnetic drilling & metal hole-cutting equipment for professional fabrication, engineering & maintenance work.

At the centre of the system are portable magnetic base drilling machines. Their electromagnetic bases secure the drill to a suitable ferrous workpiece, allowing the machine to be taken to large steel sections, fabricated assemblies & structures that aren't practical to move beneath a fixed drill.

The wider Holemaker range includes:

► Magnetic base drilling machines
► Cordless magnetic drills
► HSS annular cutters
► TCT annular cutters
► Rail cutters
► Mini cutters
► Twist drills
► Combination drill taps
► Countersinks
► Hole saws
► Sheet metal cutters
► Carbide burrs
► Hydraulic punches
► Pilot pins
► Drill chucks & adaptors
► Cutting fluids
► Magnetic-drill accessories

There's no single best cutting method for every hole. Thick structural plate, stainless steel, wear plate, thin sheet, threaded holes & countersunk fastener holes each place different demands on the machine & cutting tool.

Why Choose Holemaker for Metal Drilling?

Moving a beam, frame or fabricated assembly to a conventional drill isn't always practical. A magnetic drill brings the drilling machine to the steel instead.

For suitable fabrication & maintenance applications, Holemaker equipment can provide:

► Portable drilling on large steel workpieces
► Stable positioning on suitable ferrous surfaces
► Accurate annular cutting
► Large-diameter hole capability
► Workshop & jobsite flexibility
► Multiple cutting-tool options
► Compact drilling solutions for restricted access
► Different machine capacities for different workloads

Machine capacity still needs to match the cutter. Check hole diameter, cutting depth, spindle or arbor interface, available stroke, machine clearance & workpiece suitability before pairing a cutter with a magnetic drill.

Holemaker Magnetic Base Drills

Magnetic base drills combine portability with a controlled drilling platform for suitable ferrous steel.

Once correctly positioned, the electromagnetic base holds the machine against the workpiece while the cutter advances through the material.

ITM's Holemaker range includes multiple machine sizes & configurations, from compact drills for restricted access through to larger machines for greater cutting capacities.

Holemaker machines include models such as:

► Holemaker PRO35
► Holemaker PRO36AD
► Holemaker PRO42
► Holemaker PRO52-MT2
► Holemaker PRO55
► Holemaker PRO65
► Larger-capacity Holemaker machines

Don't select from the model number alone. Cutter capacity, cutting depth, spindle type, speed, stroke, machine dimensions & available tooling vary between models.

Choosing a Holemaker Magnetic Drill

Start with the largest diameter & deepest cut the machine will realistically need to handle then consider where those holes will be drilled.

A physically smaller machine can sometimes be the better tool. Low-profile or angle magnetic drills can reach positions where a larger conventional machine won't fit, even when the bigger machine has greater maximum capacity.

Holemaker Annular Cutters

Annular cutters don't remove the entire diameter of the hole as chips. Instead, the hollow cutter removes material around the circumference & leaves a central slug.

This cutting action makes annular cutters particularly useful for larger holes through suitable metal.

ITM's Holemaker range includes more than one cutter construction:

► Gold Series HSS
► Silver Series HSS
► Pro Cut powder steel
► Maxi Cut TCT
► Rail cutters
► Mini cutters
► Application-specific cutter configurations

Diameter is only one part of cutter selection. Material, depth of cut, shank, pilot pin & magnetic-drill capacity all need to agree with the job.

Which Holemaker Annular Cutter Should You Choose?

Mild steel, stainless steel & wear plate don't present the same cutting conditions. Holemaker offers different cutter constructions so tooling can be matched more closely to the workpiece.

Use this as a starting point rather than substituting it for the cutter specification. Material grade, thickness, diameter, machine speed, rigidity, lubrication & cutting conditions can influence the correct tooling choice.

Holemaker Gold Series HSS Annular Cutters

For general fabrication work, Gold Series provides one of Holemaker's major HSS cutter families.

ITM manufactures Gold Series cutters from M2AL high-speed steel with a titanium nitride coating. The range also uses step-hardened construction, multi-cut geometry & fully ground internal relief.

Depending on the exact cutter, available cutting depths include configurations such as 50 mm & 75 mm alongside other sizes.

Check:

► Cutter diameter
► Rated depth of cut
► Workpiece material
► Shank size
► Pilot pin
► Magnetic-drill capacity
► Cutting lubricant

Depth of cut refers to the material thickness the cutter is designed to pass through, not simply its overall physical length.

Holemaker Silver Series HSS Annular Cutters

Silver Series provides another HSS option across a wide selection of metric & imperial sizes.

ITM specifies M2AL high-speed steel, step-hardened construction, multi-cut geometry & fully ground internal relief across applicable Silver Series cutters.

Many cutters up to 60 mm diameter use a 19.05 mm (3/4") universal shank with two flats, while applicable larger cutters use a 31.75 mm (1-1/4") Weldon shank.

That makes the machine interface an important check when moving into larger cutter diameters.

Never assume a cutter fits because the diameter is within the machine's cutting capacity. Confirm the arbor or shank arrangement as well.

Holemaker Maxi Cut TCT Annular Cutters

Stainless steel, Bisalloy & wear plate can justify stepping away from a conventional HSS cutter.

Holemaker Maxi Cut cutters use an alloy steel body with tungsten-carbide cutting teeth. ITM specifically identifies them as suitable for difficult materials including:

► Stainless steel
► Bisalloy
► Wear plate
► Mild steel

Maxi Cut cutters are available across different diameters & cutting depths, including extended-depth options for suitable applications.

Longer cutters make setup increasingly important. Machine capacity, rigidity, cutter diameter, pilot-pin selection & the workpiece need to be checked carefully before deep cutting.

Annular Cutter vs Twist Drill

Both tools produce round holes, but the cutting action is fundamentally different.

The better option depends on the hole rather than habit. Holemaker also offers compatible twist-drilling solutions for jobs where conventional drilling is more appropriate.

Pilot Pins & Why They Matter

That small pin running through the centre of an annular cutter does more than mark the middle.

On compatible Holemaker systems, the pilot pin assists with:

► Locating the cutter over the hole centre
► Coolant delivery through applicable setups
► Ejecting the slug after cutting

Pilot-pin dimensions vary with cutter diameter, depth & family.

Don't reuse a pilot pin simply because it physically enters another cutter. Holemaker specifies different pilot pins across 25 mm, 35 mm, 50 mm, 75 mm, 100 mm, 150 mm, 200 mm & other cutter configurations.

Holemaker Countersinks

Already have the hole but need a flush fastener seat or cleaner finished edge?

Holemaker countersinking tools provide options for suitable metalworking applications such as:

► Creating countersunk recesses
► Preparing holes for flush fasteners
► Chamfering hole edges
► Removing burrs
► Finishing fabricated components

When the hole forms part of a bolted assembly, Bolts & Fasteners provides related fastening options for fabrication & maintenance work.

Holemaker Combination Drill Taps

Some fabrication jobs need a threaded hole rather than a clearance hole.

Holemaker combination drill taps combine drilling & thread cutting for compatible machines & applications.

Before choosing one, confirm:

► Thread diameter
► Thread pitch
► Material thickness
► Workpiece material
► Machine capability
► Tool interface
► Required cutting lubricant

Nominal fastener diameter isn't enough to select a drill tap. Thread pitch & the exact tooling specification also need to match.

Nuts & Washers provides complementary hardware where the fabricated assembly uses through-bolts rather than tapped threads.

Holemaker Hole Saws & Sheet Metal Cutters

Thin sheet can call for a very different approach from thick structural plate.

Holemaker's wider hole-cutting range includes hole saws & sheet-metal cutters for suitable fabrication, maintenance & installation work.

Applications can include:

► Panels
► Cabinets
► Enclosures
► Fabricated sheet components
► Electrical installations
► General workshop sheet metal

Choose the cutting method around material thickness. A deep annular cutter isn't automatically the best choice where a purpose-designed shallow cutter or hole saw suits the work better.

Holemaker Carbide Burrs

Once the main hole is cut, edges, profiles & nearby metal may still need finishing.

Holemaker carbide burrs support suitable rotary-tool applications including:

► Deburring
► Opening or adjusting holes
► Edge preparation
► Weld cleanup
► Contouring
► General metal shaping

Shape matters as much as diameter. Match burr profile & cut style to the surface being worked.

Holemaker Hydraulic Punches

Not every hole needs to be drilled.

Industrial Shed's Holemaker range also includes hydraulic punching equipment & compatible dies for suitable fabrication applications.

Punching can be useful where:

► Repetitive holes are required
► Material thickness is within punch capacity
► The required diameter is supported
► Access suits the punching system
► Fabrication workflow favours punching over drilling

Check both material type & thickness before punching. A die diameter alone doesn't establish whether the tool can safely handle the workpiece.

Cutting Fluid & Annular Cutter Life

Heat, friction & poor chip control can shorten cutter life quickly.

Suitable cutting fluid helps lubricate the cutting interface & manage heat during applicable drilling operations.

Holemaker offers cutting fluid alongside compatible coolant-feed equipment & drilling accessories.

During annular cutting:

► Use lubricant appropriate to the material
► Maintain controlled feed pressure
► Avoid forcing the cutter
► Clear chips where required
► Inspect cutting edges regularly
► Follow machine & cutter instructions

Leaning harder on the feed handles isn't a substitute for correct cutting conditions. Incorrect speed, inadequate lubrication, poor setup or a blunt cutter can increase heat & machine load.

Common ITM Holemaker Applications

Structural Steel Fabrication

Beams, columns, brackets & fabricated assemblies often need holes after the material has become too large or awkward to move easily.

A suitable magnetic drill lets the machine travel to the workpiece.

Workshop Fabrication

One fabrication job can involve clearance holes, tapped holes, countersinks & edge finishing.

Annular cutters, twist drills, combination drill taps, countersinks & carbide burrs provide different options as the job progresses.

Machinery Maintenance

Installed equipment rarely lines up conveniently beneath a fixed workshop drill.

Portable magnetic drilling can assist with suitable repairs, modifications & maintenance on ferrous machinery structures.

Construction & Site Steelwork

Structural components often need drilling after they're already positioned.

Machine size, magnetic contact, safe restraint, cutter clearance & access become especially important on site.

Transport & Heavy Equipment

Frames, brackets & heavy fabricated components may require drilling during repair or modification.

Confirm the structure, workpiece material, access & mounting conditions before positioning the machine.

Rail Applications

Rail work requires tooling designed around a specialised drilling environment.

Holemaker's range includes dedicated rail cutters for compatible machines & applications.

How to Choose the Right Holemaker Cutter?

Identify the Material

Start with what's actually being cut.

Mild steel, stainless steel, Bisalloy & wear plate can require different cutter choices.

Confirm the Finished Hole Diameter

Fastener diameter & hole diameter aren't necessarily identical.

Use the drawing, engineering specification or required clearance to determine the finished size.

Measure Material Thickness

The cutter must have enough depth capacity to pass through the workpiece.

Choose a cutter depth appropriate to the actual material thickness.

Check the Cutter Shank

The cutting edge is only useful if the cutter connects correctly to the machine.

Confirm universal, Weldon or other applicable shank requirements.

Match the Pilot Pin

Different cutter depths can require different pilot pins.

Use the pilot pin specified for the cutter family, diameter & depth.

Confirm Machine Capacity

Physical fit doesn't prove operating compatibility.

Check cutter diameter & cutting depth against the individual Holemaker machine specification.

Measure Available Access

A high-capacity drill still can't make the hole if it won't fit into position.

Check machine height, cutter travel & surrounding clearance before choosing the setup.

Expert Tips for ITM Holemaker Drilling

Clean the Magnetic Contact Surface

Chips, scale or debris beneath the magnetic base can interfere with contact.

Prepare the mounting surface according to the machine instructions before energising the magnet.

Use the Required Safety Restraint

Magnetic holding force shouldn't be the machine's only means of retention.

Use the specified safety strap or chain as required, particularly where machine orientation increases the consequence of lost magnetic hold.

Keep Welding Separate From Drilling

Don't weld on the same workpiece while operating the magnetic drill.

ITM warns against this because electrical interaction can damage magnetic-drill electronics.

Keep Cutters Sharp

A blunt cutter demands more feed force while generating unnecessary heat.

Inspect cutting edges for wear, chipping or damage before demanding cuts.

Let the Cutter Work

Controlled feed is more useful than excessive pressure.

Match speed, feed & lubrication to the cutter, machine & material.

Match Cutter Construction to the Steel

The cutter that handles routine mild steel isn't automatically the best choice for stainless or wear plate.

Use the material guidance for Gold Series HSS, Silver Series HSS, Maxi Cut TCT or other applicable Holemaker cutter families.

Check the Complete Setup Before Starting

The best time to discover an obstruction behind the plate isn't when the pilot pin reaches it.

Confirm hole position, plate thickness, cutter travel, machine clearance & the area behind the workpiece before drilling.

Spring Jobsite Prep provides broader equipment-preparation guidance before heavier periods of workshop or site work.