
9-Piece M42 Bi-Metal Hole Saw Set for Electricians & Plumbers
Complete 9-piece contractor set containing 6 essential M42 bi-metal hole saws (19mm–57mm / 3/4"–2-1/4"), two quick-lock arbors, and thread adapter in a heavy blow-mold case.

High-Carbon Steel (HCS) Wood, Drywall & PVC Hole Saw Cutter
SKU: NT-HLS-108
Est. 1998 · Unit 9F-H, East Building, Haijing Center, NO.144(M) Huangpu AVE, Guangzhou, China
Economical high-carbon steel hole saw with induction-hardened teeth, designed for rapid, clean cuts in softwoods, plywood, plasterboard, drywall, and PVC pipe.
| Material Grade | 50# / 65Mn High-Carbon Steel (HCS) |
|---|---|
| Tooth Hardness | 52 – 56 HRC |
| Cutting Depth | 25mm (1") & 32mm (1-1/4") |
| Diameter Range | 19mm (3/4") – 152mm (3/4" – 6") |
| size | depth | model |
|---|---|---|
| 51mm (2") | 25mm (1") | NT-HLS-108-051 |
| 64mm (2-1/2") | 25mm (1") | NT-HLS-108-064 |
| 76mm (3") | 25mm (1") | NT-HLS-108-076 |
| 102mm (4") | 25mm (1") | NT-HLS-108-102 |
| 127mm (5") | 32mm (1-1/4") | NT-HLS-108-127 |
Ceiling recessed can spotlight and speaker cutouts in drywall/plasterboard, Wooden furniture cable grommets and desk pass-through holes, PVC drainage piping and plastic electrical conduit penetrations
Process-by-requirement custom OEM/ODM manufacturing confirmed against buyer drawings prior to production.
Select individual or multiple dimensional models below to append directly to your B2B RFQ requisition.
| size | depth | model | RFQ Requisition | |
|---|---|---|---|---|
| 51mm (2") | 25mm (1") | NT-HLS-108-051 | ||
| 64mm (2-1/2") | 25mm (1") | NT-HLS-108-064 | ||
| 76mm (3") | 25mm (1") | NT-HLS-108-076 | ||
| 102mm (4") | 25mm (1") | NT-HLS-108-102 | ||
| 127mm (5") | 32mm (1-1/4") | NT-HLS-108-127 |
Ceiling recessed can spotlight and speaker cutouts in drywall/plasterboard, Wooden furniture cable grommets and desk pass-through holes, PVC drainage piping and plastic electrical conduit penetrations
Economical high-carbon steel hole saw with induction-hardened teeth, designed for rapid, clean cuts in softwoods, plywood, plasterboard, drywall, and PVC pipe.
Manufacturing processes and technical parameters are tailored according to customer requirements. Tell us your target material, dimensions, drawings, and order quantity, and we configure the construction, bond/alloy grade, and finishing to match.
We support flexible FOB and CIF delivery at any port in China (including Guangzhou, Shenzhen, Ningbo, Shanghai, Qingdao, Tianjin, and Xiamen) with 100% pre-shipment inspection before dispatch.
Yes. Custom laser marking, color finishes, private-label retail or industrial packaging, and barcode labeling are agreed with you before production.
Cross-Referenced Tooling

Complete 9-piece contractor set containing 6 essential M42 bi-metal hole saws (19mm–57mm / 3/4"–2-1/4"), two quick-lock arbors, and thread adapter in a heavy blow-mold case.

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