The HMT CarbideMax 40 Broach Cutter Pilot Pins (MPN: 108030P-0170) solve the critical issue of cutter misalignment and inefficient core ejection during heavy-duty hole-broaching operations. Designed to withstand high thermal and mechanical stress, these replacement pilot pins prevent drill binding and minimise costly downtime on heavy-plate fabrication projects.
What’s In the Box
Benefit-Driven Technicals
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Precision Centring Alignment: Accurately locates pre-marked centre points to ensure exact hole placement every time.
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Internal Coolant Channel Activation: Depresses internal fluid valves upon workpiece contact, delivering direct lubrication to the cutting edge to extend tool lifespan.
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Spring-Loaded Core Ejection: Mechanically expels the solid metal slug at the end of the pass to maintain continuous drilling workflow without manual picking.
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Hardened Tool Steel Construction: Resists bending and galling under extreme downforce, reducing pin fracture risks during high-RPM operations.
Features
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Specifically calibrated ground shank for seamless fit inside HMT CarbideMax 40 series cutters.
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High-tensile alloy composition engineered for prolonged thermal exposure.
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Smooth surface finish reduces internal friction within the cutter arbor.
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Pack of 2 ensures uninterrupted workshop throughput with immediate spares on hand.
Applications
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Structural steel fabrication and heavy plate drilling.
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On-site mag-drilling across construction and infrastructure projects.
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Maintenance and repair operations utilising magnetic base drilling machinery.
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General engineering workshops processing tough alloys and structural sections.
EWS Expert Note
Always ensure your magnetic drill's internal arbor spring is operating smoothly and free of metal swarf before inserting a new pilot pin. Applying a small amount of heavy-duty cutting paste directly to the pilot pin shaft before insertion will ensure fluid movement, prevent pin sticking, and optimise coolant delivery directly through the centre of your CarbideMax cutter.
Pros & Cons
Pros:
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Dual-functionality providing pinpoint alignment and automatic core slug ejection.
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Engineered specifically to optimise coolant delivery through CarbideMax 40 cutters.
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Supplied as a cost-effective 2-pack to minimise unexpected workshop downtime.
Cons:
Technical FAQs
Q: Will this pilot pin fit non-HMT broaching cutters?
A: This pilot pin is engineered specifically for the HMT CarbideMax 40 series across the 12mm to 17mm diameter range. Using it with non-HMT broaching cutters or different cutter depth series may lead to incorrect seating, inefficient slug ejection, or premature pin snapping under feed pressure.
Q: Can this pin withstand continuous dry drilling without failing?
A: While the hardened steel design handles elevated temperatures, dry drilling significantly increases friction and thermal stress. For maximum operational life and to prevent bit binding or pin distortion, you must use continuous cutting fluid or active cutting paste through the central coolant system.
Q: How do I maintain these pins to prevent snapping or jamming?
A: Regularly clean swarf and debris from the cutter arbor and pilot channel. Inspect pins periodically for burrs, galling, or shaft distortion. Ensure UKCA/CE-compliant mag-drill coolant systems are delivering fluid correctly, as thermal shock from dry-to-wet transition can fracture hardened steel components.
As an Official UK Stockist, Express Weldcare provides genuine HMT equipment with expert technical backup and fast despatch.