Morse MHS Bi-Metal Hole Saw Sourcing
The fastest way to find, compare and buy Morse MHS bi-metal hole saws.
Describe the hole diameter, material you're cutting, or arbor you have. ChatMRO finds the exact Morse match, shows alternatives, and gives you a quote — in seconds. No part number needed.
AI-generated imageA bi-metal hole saw combines a flexible, shock-resistant backing body with a hardened high-speed steel cutting edge welded to the rim, giving the saw the durability to cut wood, plastic, and machinable metals up to and including stainless steel with the same tool. Morse's MHS Advanced line uses premium M42 high-speed steel with 8% cobalt at the cutting edge, and an optimized tooth pitch, set, and profile engineered to deliver consistent performance regardless of material type or depth of cut.
Electricians, HVAC installers, plumbers, and industrial maintenance technicians rely on MHS hole saws wherever a clean, round opening needs to be cut through a mixed-material job — conduit and cable openings, ductwork penetrations, and general fabrication holes are common uses. An aggressive, positive-rake tooth design speeds material removal, a solid cap minimizes runout and vibration for a more accurate cut, and an enhanced side slot gives added leverage for faster, easier slug removal once the cut is complete. Morse recommends pre-drilling the pilot hole with the hole saw's arbor or pilot bit before mounting and cutting, which prevents sudden break-through damage to the cutting edge and improves control, especially on thinner materials prone to deflection.
Common configuration: diameters spanning roughly 14mm-168mm (9/16" to 6-5/8") across the full MHS range, 1-15/16" cutting depth on standard sizes, M42 high-speed steel with 8% cobalt cutting edge, industry-standard arbor threads of 1/2"-20 (for hole saws up to 1-3/16") and 5/8"-18 (for hole saws 1-1/4" and above), heavy-duty 1.3mm wall body construction, applicable to machinable metal, nail-embedded wood, plastic, stainless steel alloy, and standard wood, and made in the USA. Hole saws are sold either bare (arbor required separately) or as MHSA configurations with the arbor pre-attached, and multi-piece kits (such as the 25-piece MHS23M) bundle a range of the most commonly used diameters with a standard and pin-drive arbor in one case.
Stop second-guessing. Match your use case below — then let ChatMRO's AI surface the exact diameter, arbor configuration, and alternatives in one natural-language search.
Electricians and installers repeatedly cutting the same hole size across many job sites. Individual bare MHS saws dominate here.
Technicians needing a complete, ready-to-mount saw without sourcing a separate arbor. MHSA (arbor-attached) configurations dominate here.
Maintenance shops and fabricators needing broad diameter coverage in one organized case.
M.K. Morse's Advanced MHS bi-metal hole saw line spans bare saws, arbor-attached configurations, and multi-piece kits, all built on the same optimized cutting geometry. Here's how to navigate the range without a 40-tab browser session.
ChatMRO indexes the full Morse MHS hole saw catalogue. Search any product by description, application, or rough spec.
The repeat-job workhorse. Diameters from ~9/16" to 6-5/8", 1-15/16" cutting depth, M42 HSS-Co8 cutting edge, 1.3mm heavy-duty wall body. Compatible with industry-standard 1/2"-20 or 5/8"-18 threaded arbors. Made in USA.
Search MHS Series (e.g. MHS16, MHS18, MHS22) →Same M42 HSS-Co8 cutting edge and 1-15/16" cutting depth as the bare MHS line, supplied with the arbor and pilot drill pre-attached for immediate use — hex shank fits a standard 1/2" drill chuck, 90-270 RPM recommended range depending on diameter.
Search MHSA Series →Contains 3/4", 7/8", 1", 1-1/8", 1-3/8", 1-1/2", 1-3/4", 2", 2-1/8", 2-1/4", 2-1/2", 2-5/8", 3", 3-1/4", 3-3/8", 3-5/8", 4-1/8", 4-1/2", and 4-3/4" diameter saws, plus a 3/8" shank (1/2"-20) standard arbor, a 1/2" shank (5/8"-18) pin-drive arbor, HSS replacement pilot drill, 12" arbor extension, and carrying case.
Search MHS23M Series →Use this table as a decision shortcut. Ask ChatMRO for the exact part once you know which row fits your spec.
| Configuration | Diameter Coverage | Arbor Included | Best For | Cutting Depth | Cutting Edge | ChatMRO Verdict |
|---|---|---|---|---|---|---|
| Bare MHS Saw (individual) | Single size, ~9/16"-6-5/8" | No — sold separately | Repeat single-diameter jobs with an existing arbor | 1-15/16" | M42 HSS-Co8 | Best value when an arbor is already on hand |
| MHSA (arbor attached) | Single size, model-specific | Yes — pre-attached | Immediate single-size use without sourcing an arbor | 1-15/16" | M42 HSS-Co8 | Most common choice for a straightforward ready-to-cut saw |
| MHS23M (25-piece kit) | 19 diameters, 3/4"-4-3/4" | Yes — 2 arbors included | Maintenance shops needing broad diameter coverage | 1-15/16" | M42 HSS-Co8 | Go-to for facilities cutting many different hole sizes |
| 25-Pack Single Diameter (e.g. MHS22B25) | Single size, bulk pack of 25 | No — sold separately | High-volume production runs at one fixed diameter | 1-15/16" | M42 HSS-Co8 | Use for production environments cutting the same size repeatedly |
| Standard HSS Hole Saw (comparison) | Variable | Varies | Wood/soft material only, budget-sensitive jobs | Model-specific | Standard HSS (no cobalt) | Not suitable for stainless steel or heavy metal cutting duty |
| Generic Import Bi-Metal Hole Saw | Variable | Varies | Budget, occasional light use | Variable | Variable | Verify cobalt content and wall thickness before daily professional use |
Not sure which row is yours? Describe your application to ChatMRO and get an instant AI-matched recommendation with datasheets.
Traditional catalogues force you to know the exact MPN before you find anything. ChatMRO flips that: describe what you need in plain English, and the AI finds the right hole saw from 30M+ indexed parts.
In plain language — by hole diameter, material, or arbor you have. No MPN required.
Natural language processing maps your description to the closest-fit products across brands and specs.
Cross-brand equivalents, lower-cost substitutes, and in-stock alternatives shown side-by-side.
Add to cart or request RFQ directly from the results. No phone calls. No email chains.
Try these bi-metal hole saw search examples
Whether you're an electrician cutting conduit openings, or a maintenance shop equipping a mixed-diameter kit — use this framework before you procure.
Measure the exact opening size needed for your conduit, fixture, or fabrication task — the MHS line spans roughly 9/16" to 6-5/8" in diameter across individual saw sizes.
Bi-metal construction with M42 HSS-Co8 cutting edge handles wood, plastic, machinable metals, and stainless steel — confirm this matches your actual material before selecting a lower-grade alternative.
If you already have a compatible arbor from a previous purchase, a bare MHS saw saves cost; if starting fresh or replacing a lost arbor, an MHSA (arbor-attached) configuration is ready to use immediately.
Hole saws up to 1-3/16" use 1/2"-20 threaded arbors, while 1-1/4" and larger use 5/8"-18 threaded arbors — confirm this matches your existing arbor before ordering a bare saw.
If your work regularly requires different hole sizes across jobs, a kit like the 25-piece MHS23M avoids needing to separately stock and locate individual saws.
Hole saws up to 1-3/16" and those 1-1/4" and larger use different arbor thread sizes. Search by function on ChatMRO — the AI surfaces exact matches AND available substitutes with the correct arbor thread for your setup.
Failing to pre-drill the pilot hole before cutting can cause sudden break-through damage to the cutting edge, especially on thinner materials prone to deflection — Morse specifically recommends this step to protect cutting life.
Standard HSS hole saws without cobalt content wear out quickly on stainless steel — confirm you're selecting the M42 HSS-Co8 bi-metal construction for that material.
Describing your application to ChatMRO takes 30 seconds. The AI reads the full Morse MHS hole saw catalogue so you don't have to.
The MHS line is rated for wood, plastic, machinable metals, stainless steel alloys, and nail-embedded wood, using the same M42 high-speed steel with 8% cobalt cutting edge across the material range. Search this hole saw type on ChatMRO to compare pricing and availability instantly.
A bare MHS saw is sold as the cutting body only, requiring a separately purchased arbor for mounting into a drill, while an MHSA saw comes with the arbor pre-attached and ready to mount directly into a drill chuck. ChatMRO can surface both configurations from a single description search.
Pre-drilling the pilot hole with the hole saw's arbor or pilot bit prevents sudden 'break-through' damage to the cutting edge as the bit exits the material, and improves control of the cutting operation with more even tooth engagement — this is especially important on thinner materials that tend to deflect under cutting pressure. ChatMRO provides access to manufacturer usage guidance directly from search results.
Hole saws up to 1-3/16" in diameter use the industry-standard 1/2"-20 threaded arbor, while hole saws 1-1/4" and larger use the 5/8"-18 threaded arbor — confirm your specific saw's diameter against this threshold before selecting or reusing an arbor. If you're unsure which arbor fits your saw, describe your application to ChatMRO and get an AI recommendation in seconds.
ChatMRO indexes M.K. Morse inventory from multiple distributors across India, Southeast Asia, US, and EU. Search by part name, description, or rough spec — you'll see real-time stock levels and can request a quote in under 60 seconds without calling a single distributor.
Yes — that's exactly what ChatMRO is built for. Describe the hole diameter, material, and arbor you have in plain English. The AI matches your description against 30M+ indexed parts and returns the closest Morse SKU with datasheet, alternatives, and a quote option. Try it now — no account required.
Just describe what you need. ChatMRO finds the right Morse MHS bi-metal hole saw in seconds.
Morse MHS bi-metal hole saws are among the most widely specified general-purpose hole cutting tools for electrical, HVAC, plumbing, and general fabrication work spanning wood, plastic, and metal — including stainless steel — in a single tool. M.K. Morse commands significant market presence due to its optimized tooth pitch, set, and profile geometry, M42 high-speed steel with 8% cobalt cutting edges, and a broad range spanning bare saws, arbor-attached MHSA configurations, and multi-piece kits like the 25-piece MHS23M, all made in the USA. Procurement professionals and industrial maintenance teams in India, Southeast Asia, and North America regularly source Morse MHS hole saws for conduit and cable openings, ductwork penetrations, and general mixed-material drilling needs.
ChatMRO simplifies this procurement process by providing AI-powered natural language search across a catalogue of 30 million+ indexed industrial parts. Buyers no longer need to memorize model codes or navigate multi-level filter trees to find the right hole saw. A simple description of the hole diameter, material, or arbor you have is sufficient to surface the correct Morse product alongside cross-brand alternatives and real-time pricing.
