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Hole Saw Arbor with Adapter, 3/8-Inch
31905 - spec sheet
Features
- See 31906 Arbor with Pins for large hole saws
- Arbor adapter included for use with hole saws 1-3/8-Inch (35 mm) and larger
- 118 degree split point pilot bits
- For use with ALL Klein hole saws
- Steel construction for long life
- Fast and easy to engage and disengage hole saw
Warnings
- Read and follow safety instructions in power tool owner’s manual.
- Always wear approved eye protection.
- Never use on or near live electrical circuits.
31905 - spec sheet
Manufacturer Resources
Spec Sheet
Product Specs
- Electric Drill Size:
- 1/2" (1.3 cm) and Larger
- For Use With:
- All Klein Tools Hole Saws
- Hole Diameter:
- 1/4" (0.6 cm)
- Item Depth:
- 4.5000 in
- Item Height:
- 0.5000 in
- Item Weight:
- 0.1600 lbs
- Item Width:
- 0.5000 in
- Overall Height:
- 0.5" (1.3 cm)
- Overall Length:
- 4.5" (11.4 cm)
- Overall Width:
- 0.5" (1.3 cm)
- Ejector Pins:
- No
- Replacement Parts:
- 31907, 31914, 31918, 31922
- Shank Diameter:
- 3/8"
- Shank Style:
- Hexagonal
- Thread Length:
- 1/2"-20
- Department:
- Electrical
- Product Group:
- Power Tools & Accessories
- Product Subgroup:
- Hole Saws & Bits
- Product Material:
- Steel
- Product Weight:
- 2.6 oz (72.6 g)
- Product Type:
- Hole Saw Arbor
- Product Width:
- 0.5 in
- Product Depth:
- 4.5 in
- Product Height:
- 0.5 in
Klein Tools 31905 – Frequently Asked Questions
1) Will the Klein 31905 arbor fit my drill chuck?
The 31905 arbor has a 3/8 inch hexagonal shank, so it seats in a standard 3/8 inch or larger three-jaw chuck, and the hex flats keep it from spinning under load. Klein specifies it for electric drills 1/2 inch and larger. Overall length is 4.5 inches.
2) Is the 31905 the right Klein arbor for large-diameter hole saws?
For large hole saws Klein points to the 31906 arbor with pins instead. The 31905 has no ejector pins, so it is the plain-drive arbor: fine for small and mid-size saws (with the included adapter above 1-3/8 inch), but if you want pin-driven engagement on big saws, use the 31906.
3) If I'm standardizing a set of Klein hole saws across a maintenance shop, does one 31905 arbor cover the whole set?
One 31905 covers the range: it is specified for use with all Klein Tools hole saws, running the smaller saws on its 1/2-20 thread directly and the 1-3/8 inch and larger saws through the included adapter. The only case for a second arbor is the 31906 with pins if you want pin drive on the large saws.
4) What size pilot bit does the Klein 31905 arbor use, and can I replace it when it dulls?
The pilot bit is a 1/4 inch drill with a 118 degree split point, so it starts without walking on steel or wood. Replacement pilot bits and parts are Klein 31907, 31914, 31918 and 31922, so a dull or snapped pilot does not scrap the arbor.
5) Is the Klein 31905 hole saw arbor steel, and will it hold up to daily use in an electrical crew truck?
Steel construction throughout, which is why Klein rates it for long life on repeat use. It weighs 2.6 oz (72.6 g) and measures 4.5 x 0.5 x 0.5 inches, so it drops into a pouch or hole saw kit case without adding bulk.
6) Can I use the Klein 31905 arbor to cut openings in a live panel?
No. Klein's instruction on the 31905 is never to use it on or near live electrical circuits. De-energize first, wear approved eye protection, and follow the safety instructions in your drill's owner manual.
How fast can I get the Klein Tools 31905 delivered?
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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 31905 come with a warranty?
Absolutely. The Klein Tools 31905 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 31905?
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