Newtech Sources Co., Ltd.
Newtech Sources Co., Ltd.Est. 1998 · Guangzhou
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Newtech Sources Co., Ltd. · Est. 1998 (28+ Yrs)Process-by-Requirement Custom Manufacturing · FOB/CIF Delivery from Any Port in China100% Pre-Shipment Inspection

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Newtech Sources Co., Ltd.

Newtech Sources Co., Ltd.

Industrial Tooling & PPE Manufacturer · Since 1998

Industrial diamond tools, personal protective equipment (PPE), automotive maintenance tools, and precision hardware engineered to buyer drawings and application requirements.

Unit 9F-H, East Building, Haijing Center, NO.144(M) Huangpu AVE, Guangzhou, China
+86-20-8562 6570/6571/6572/6573
sales@newtech-sources.com

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  • 01Diamond Tools
  • 02Safety Products (PPE)
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Diamond Tooling Series

  • Diamond Saw Blades
  • TCT Saw Blades
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Category · Hole Saws

Hole Saws

Industrial diamond blades, core drill bits, PPE safety equipment, automotive maintenance sets, and workshop hand tools. Process-matched to buyer drawings with 100% pre-shipment inspection and delivery from any port in China.

Quick Filter:All ProductsDiamond ToolsDrillsHole SawsWire Brushes
Product Categories

Product Lines

05
All Catalog Products149
  • 01Diamond Tools91
    • Diamond Saw Blades21
    • TCT Saw Blades17
    • Diamond Grinding Wheels12
    • Electroplated Tools15
    • Vacuum Brazed Tools13
    • Diamond Grinding Plates7
    • Diamond Core Bits6
  • 02Hardware & Hand Tools43
    • Drills16
    • Hole Saws13
    • Wire Brushes12
  • 03Safety Products2
  • 04Automotive Tools2
  • 05Promotional Items11
Bespoke OEM / ODM Tooling

Non-standard diameters, segment bond formulas, and arbor configurations manufactured to drawing.

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Showing 12 of 13 productsHole Saws
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NT-HLS-113Hole Saws
TCT Tungsten Carbide Tipped Woodworking & Heavy Timber Hole Saw

TCT Tungsten Carbide Tipped Woodworking & Heavy Timber Hole Saw

Heavy-duty carbide-tipped wood hole saw with aggressive large tooth spacing, engineered to power through dense timber, nail-embedded demolition wood, and composite boards.

Key SpecHeavy tungsten carbide teeth slice through nail-embedded wood and hard knots
PerformanceWide-spaced gullets clear heavy wood chips rapidly without clogging
Specs
NT-HLS-112Hole Saws
TCT Tungsten Carbide Tipped Heavy-Duty Metal & Stainless Steel Hole Saw

TCT Tungsten Carbide Tipped Heavy-Duty Metal & Stainless Steel Hole Saw

High-durability TCT tungsten carbide tipped metal hole saw engineered for stainless steel 304/316, thick plate steel, iron pipe, and aluminum with spring ejection.

Key SpecMicrograin tungsten carbide teeth deliver up to 10x the life of bi-metal in stainless steel
PerformanceTriple-chip tooth geometry balances cutting forces and reduces thermal buildup
Specs
NT-HLS-111Hole Saws
Multi-Blade 7-in-1 Concentric Nest Hole Saw Cutter Set

Multi-Blade 7-in-1 Concentric Nest Hole Saw Cutter Set

Classic nested 7-in-1 multi-blade hole saw kit featuring heavy die-cast aluminum base disc, 7 interchangeable spring steel blades (25mm–63mm), and center pilot drill.

Key Spec7 interchangeable concentric cutting blades nestled in one compact aluminum disc
Blades25mm (1"), 32mm (1-1/4"), 38mm (1-1/2"), 45mm (1-3/4"), 50mm (2"), 56mm (2.2"), 63mm (1" to 2-1/2")
Specs
NT-HLS-110Hole Saws
Integrated High-Carbon Steel Hole Saw with Fixed Round Shank

Integrated High-Carbon Steel Hole Saw with Fixed Round Shank

Sturdy one-piece carbon steel hole saw with permanently affixed round shank and center drill, offering exceptional economy for woodworking and interior drywalling.

Key SpecIntegrated 1-piece body and shank eliminates assembly complications
PerformanceHeat-treated carbon steel teeth for dependable cutting in softwoods and drywall
Specs
NT-HLS-109Hole Saws
Industrial Hole Saw Quick-Lock Arbors, Mandrels & HSS Pilot Bits

Industrial Hole Saw Quick-Lock Arbors, Mandrels & HSS Pilot Bits

Heavy-duty hole saw arbor mandrels featuring hardened alloy steel drive pins, 1/2"-20 & 5/8"-18 threads, and premium HSS center pilot drills for slip-free power transmission.

Key SpecSliding dual drive pins absorb rotational torque, preventing arbor thread seizure
PerformanceAvailable in 3/8" (9.5mm (3/8")) & 7/16" (11mm (0.43")) hex shanks and SDS-Plus hammer shanks
Specs
NT-HLS-108Hole Saws
High-Carbon Steel (HCS) Wood, Drywall & PVC Hole Saw Cutter

High-Carbon Steel (HCS) Wood, Drywall & PVC Hole Saw Cutter

Economical high-carbon steel hole saw with induction-hardened teeth, designed for rapid, clean cuts in softwoods, plywood, plasterboard, drywall, and PVC pipe.

Key SpecInduction-hardened carbon steel teeth deliver fast cuts in soft materials
PerformanceWide gullet tooth spacing prevents sawdust buildup in resinous wood and drywall
Specs
NT-HLS-107Hole Saws
Sheet Metal Thin-Gauge Bi-Metal Hole Saw with Safety Depth Stop Collar

Sheet Metal Thin-Gauge Bi-Metal Hole Saw with Safety Depth Stop Collar

Specialized shallow-depth sheet metal hole saw with safety flange stop collar to prevent over-penetration into electrical wiring and internal components behind metal panels.

Key SpecSafety depth stop collar prevents over-penetration into internal cables and pipes
PerformanceShallow cutting cup engineered specifically for sheet steel, brass, and aluminum
Specs
NT-HLS-106Hole Saws
Integrated Bi-Metal Hole Saw with Welded Hex Shank & Ejection Spring

Integrated Bi-Metal Hole Saw with Welded Hex Shank & Ejection Spring

One-piece integrated bi-metal hole saw featuring a permanently welded 1/4" or 3/8" hex shank, spring-loaded pilot bit, and zero arbor assembly hassle for fast cordless drilling.

Key Spec1-piece integrated design requires no separate arbor or assembly tools
PerformancePrecision welded hex shank fits all standard 3-jaw and quick-release chucks
Specs
NT-HLS-105Hole Saws
13-Piece Master M42 Bi-Metal Hole Saw Complete Industrial Case Set

13-Piece Master M42 Bi-Metal Hole Saw Complete Industrial Case Set

Full-spectrum 13-piece industrial kit containing 9 high-performance M42 bi-metal hole saws (19mm–76mm), 2 quick-change arbors, pilot bit, and accessories in rugged case.

Key Spec9 industrial M42 bi-metal hole saws spanning 19mm (3/4") to 76mm (3")
PerformanceSuperior 4/6 variable tooth pitch delivers aggressive cuts and chatter-free operation
Specs
NT-HLS-104Hole Saws
12-Piece M42 Bi-Metal Hole Saw Master Technician Assortment Set

12-Piece M42 Bi-Metal Hole Saw Master Technician Assortment Set

12-piece master hole saw set providing 8 M42 bi-metal hole saws (19mm–76mm / 3/4"–3"), two heavy-duty mandrels, spare pilot drill, and hex key in rugged carrying case.

Key Spec8 M42 bi-metal hole saws spanning from 19mm (3/4") up to 76mm (3")
PerformanceIncludes both small (1/2"-20) and large heavy-duty pin-lock (5/8"-18) arbors
Specs
NT-HLS-103Hole Saws
10-Piece M42 Bi-Metal Hole Saw Contractor Kit with Ejection Springs

10-Piece M42 Bi-Metal Hole Saw Contractor Kit with Ejection Springs

10-piece industrial M42 bi-metal hole saw set featuring 6 popular commercial cutting sizes, 2 mandrels with center drills, pilot spring ejection, and blow-mold case.

Key SpecSpring-loaded pilot drill ejects plugs automatically for continuous drilling
Performance6 core trade hole saws covering 22mm (0.87") to 64mm (2-1/2")
Specs
NT-HLS-102Hole Saws
9-Piece M42 Bi-Metal Hole Saw Set for Electricians & Plumbers

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.

Key Spec6 most popular trade sizes for electrical conduit and copper/PVC plumbing pipes
PerformanceM42 8% cobalt tooth construction provides long life in stainless and carbon steel
Specs
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