Bi-Metal Hole Saws — M42 HSS
Bi-metal hole saws with M42 (8% cobalt) HSS teeth electron-beam welded to a tough alloy body. 38–114 mm for stainless steel, mild steel, PVC/engineering pipe, wood and plastic. Variable pitch, 4/6 TPI.
MOQ
100–200 pcs per size
Lead time
20–30 days
Samples
Free, 5–7 days
Shipping
FOB Ningbo / Shanghai
- M42 HSS teeth, 8% cobalt
- 38 – 114 mm (1-1/2" – 4-1/2")
- Stainless, steel, pipe, wood, plastic
- Kits and private-label blister available
Manufactured by Zhejiang Dehui Tools Co., Ltd., Yueqing · 41+ years · PGM member since 2009 · ISO 9001 / 14001
Specifications
DH-BM technical data
Specification Table
DH-BM sizes
| Name | Specification | Material | Use |
|---|---|---|---|
| M42 pipe hole opener | 38-114mm in diameter | M42 | Stainless steel, engineering pipes, plastic, wood |
Product Details
Bi-Metal Hole Saws — M42 HSS — detail views
Made on PGM-certified lines
Same steel, brazing and heat treatment as our PGM series.
1200 °C automatic brazing
German MAHLER lines — no hand-torch joints.
20–30 days lead time
FOB Ningbo / Shanghai; CIF to SE Asia and the Gulf on request.
FAQ
What sizes of bi-metal hole saws — m42 hss do you make?
See the specification table above; custom specifications are available from 100–200 pcs per size.
What is the MOQ for DH-BM?
100–200 pcs per size; sizes can be mixed within the series. Samples of standard sizes are free (courier collect) and ship in 5–7 days.
Can you put our brand on DH-BM?
Yes — laser or stamp marking on the shank plus printed blister, case or box. Artwork approval adds about one week to the standard lead time.



