Klein Tools Bi-Metal Hole Saw 6-3/8 Inch Diameter
Professional-Grade Heavy-Duty Steel Construction Cutting Tool
The Klein Tools Bi-Metal Hole Saw 6-3/8 Inch delivers professional-grade cutting performance for recessed lighting installation and electrical applications. This heavy-duty steel construction hole saw features bi-metal cutting technology designed for electricians, contractors, and electrical professionals, providing the reliable performance and industry-leading quality that tradesmen demand from America's most trusted tool manufacturer.
Professional Features & Benefits
Superior Cutting Performance
- Bi-Metal Construction - Advanced tooth design cuts through multiple materials with Klein Tools precision and durability
- 6-3/8 Inch Diameter - Perfect size for most major brands of 6-inch recessed lighting fixtures with professional accuracy
- Single Pass Cutting - Bores through 2x4s in one pass, reducing installation time and increasing productivity
- Versatile Material Compatibility - Cuts precise holes in drywall, ceiling tile, steel, wood, plastic, and stainless steel
Professional Durability & Safety
- Heavy-Duty Steel Construction - Klein Tools engineering ensures long-lasting performance under demanding professional use
- Precision Hole Cutting - Creates clean, accurate holes in drywall and ceiling tile for professional electrical installations
- Professional Safety Standards - Designed for safe operation with proper eye protection and following Klein Tools safety protocols
Technical Specifications
Hole diameter: 6-3/8 inches (16.2 cm), pipe entrance size: 6 inches (15.2 cm), weight: 2.0 pounds (0.9 kg), dimensions: 6.375 x 6.375 x 2.1 inches, heavy-duty steel bi-metal construction, requires Klein Tools Arbor (Cat. No. 31906) sold separately, replacement parts available (Cat. No. 31907).
Installation & Usage
- Always wear approved eye protection and follow power tool safety instructions before operation
- Attach hole saw to Klein Tools Arbor (Cat. No. 31906) ensuring secure connection for safe cutting
- Mark cutting location accurately and secure workpiece to prevent movement during cutting operation
- Start drill at low speed and gradually increase to prevent binding and ensure clean cut
- Apply steady, even pressure while cutting through material, allowing bi-metal teeth to work efficiently
- Never use on or near live electrical circuits - ensure power is disconnected before cutting
Professional Applications
Ideal for:
- Recessed Lighting Installation - Perfect for 6-inch recessed lighting fixtures in residential and commercial applications
- Electrical Rough-In Work - Creating precise openings for electrical boxes and fixtures in drywall and ceiling materials
- HVAC Installation - Cutting vent openings and ductwork access holes in various building materials
- Construction Applications - General hole cutting in wood framing, steel studs, and composite materials
- Renovation Projects - Retrofit installations requiring precise hole cutting in existing walls and ceilings
- Commercial Electrical Work - Large-scale electrical installations requiring consistent, professional-quality hole cutting
- Industrial Maintenance - Equipment access holes and utility penetrations in industrial facilities
- Telecommunications Installation - Cable and conduit penetrations through walls and structural elements
Bi-Metal Technology Advantage
Klein Tools bi-metal hole saw technology combines high-speed steel cutting edges with flexible alloy steel backing, delivering superior cutting performance and extended tool life. This precision-engineered design provides clean cuts through diverse materials while maintaining sharp cutting edges longer than standard hole saws, ensuring consistent professional results for electrical contractors.
Why Choose Klein Tools Quality?
Since 1857, Klein Tools has maintained its commitment to manufacturing the highest quality tools for electrical professionals. This bi-metal hole saw reflects Klein's dedication to precision engineering, rigorous testing protocols, and professional-grade construction standards that electricians and contractors trust for critical installations and demanding job site conditions.
Manufacturer Resources
Spec Sheet
Product Specs
- For Use With:
- 31906
- Hole Diameter:
- 6-3/8" (16.2 cm)
- Item Depth:
- 2.1000 in
- Item Height:
- 6.3750 in
- Item Weight:
- 2.0000 lbs
- Item Width:
- 6.3750 in
- Pipe Entrance Size:
- 6" (15.2 cm)
- Replacement Parts:
- 31907
- Department:
- Electrical
- Product Group:
- Power Tools & Accessories
- Product Subgroup:
- Hole Saws & Bits
- Product Weight:
- 2.0 lb (0.9 kg)
- Product Type:
- Hole Saw
- Product Depth:
- 2.1 in
- Product Width:
- 6.375 in
- Product Height:
- 6.375 in
Klein Tools 31900 – Frequently Asked Questions
1) Will the Klein 31900 hole saw cut the right size opening for 6-inch recessed can lights?
Yes. The Klein 31900 bi-metal hole saw cuts a 6-3/8 inch (16.2 cm) hole, which is the rough opening most 6-inch recessed housings and retrofit trims need, with a 6 inch (15.2 cm) pipe entrance size. If your fixture's cut-out spec sheet calls for something other than 6-3/8 inches, measure the housing's listed rough opening first, since trims vary between manufacturers.
2) Does the Klein 31900 hole saw come with an arbor, or do I need to buy one separately?
The arbor is not included. The 31900 bi-metal hole saw mounts on the Klein Tools arbor, Cat. No. 31906, ordered separately. Without it the saw has no way to chuck into a drill, so add the arbor to the same order if you don't already have one on the truck. Replacement parts for the saw are Cat. No. 31907.
3) What materials can a bi-metal hole saw like the Klein 31900 cut through?
Drywall, ceiling tile, wood, plastic, steel, and stainless steel. The bi-metal build pairs high-speed steel cutting teeth with a flexible alloy steel body, so it handles metal studs and light sheet steel as well as gypsum board, which is what separates it from a carbide-grit or plaster-only cutter that will strip its teeth the moment it hits a stud. It will also bore a 2x4 in a single pass.
4) Can I cut recessed light holes in a ceiling with the Klein 31900 without hitting the framing?
The 31900 will cut straight through a joist or a 2x4 if it lands on one, so locate framing before you core. Cut depth is not a limit here: it bores a 2x4 in one pass. Mark the layout, confirm the bay is clear, secure the material, start the drill slow and bring the speed up so the teeth don't bind in the gypsum.
5) I already own Klein hole saws in other sizes. Will the 31900 fit the arbor I have?
The 31900 is specified for the Klein Tools 31906 arbor. If that is the arbor already in your kit from other Klein bi-metal saws in this family, the 6-3/8 inch cup threads onto it the same way. If your existing arbor is a different Klein or third-party number, match to 31906 rather than assuming the thread carries over.
6) How much does the Klein 31900 6-3/8 inch hole saw weigh and how big is the cup?
Two pounds (0.9 kg), measuring 6.375 x 6.375 x 2.1 inches. The 2.1 inch dimension is the cup depth, which governs how thick a material you can get through in one plunge before you have to clear the slug. For overhead recessed-can work, that two pounds hanging off the end of a drill is worth knowing before you spend a day on a lift.
7) Can I use the Klein 31900 hole saw to cut openings for HVAC vents and conduit penetrations, not just lighting?
Yes. Any penetration that wants a clean 6-3/8 inch hole works, including small duct and vent openings, cable and conduit pass-throughs, and equipment access holes in wood framing, steel studs, and composites. The 6 inch pipe entrance size is what lets a 6 inch round duct or sleeve pass through the cut. One job-site rule regardless of application: kill the power to the area before you core a wall or ceiling.
How fast can I get the Klein Tools 31900 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Klein Tools 31900 come with a warranty?
Absolutely. The Klein Tools 31900 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Klein Tools 31900?
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