Triumph
Broca de extensión para aeronaves de 5/16" x 18" y 118° (paquete de 1)
059920
$69.25$173.13/ea
In stock
HomeMetal y maderaBrocas de alta velocidad
High-Speed Drill Bits Extra Length (18" and up)
Products59
BrandsTriumph and Tru-Cut
Quick answer
HSS drill bits from 18" to 72" for long holes through framing, walls and thick stock. Mostly Tru-Cut, plus Triumph, in 118° bright and 135° HD black oxide, sizes 1/8" to 1".
Triumph
Broca de extensión para aeronaves de 118° y 7/16" x 18" (paquete de 1)
059928
$84.48$211.21/ea
In stock
Triumph
Broca de extensión para aeronaves de 5/8" x 18" y 118° (paquete de 1)
059940
$145.88/ea
In stock
Triumph
Broca de extensión para aeronaves de 1/2" x 18" y 118° (paquete de 1)
059932
$102.17$255.42/ea
In stock
Choosing an extra-length bit
Extra-length high-speed steel bits reach where nothing else does: through several studs or joists, a wall, or a thick piece of stock. This range starts at 18" and runs through 24", 36", 48", 60" and 72", in sizes from 1/8" up to 1". Most are Tru-Cut, with some Triumph. Bright finish bits are 118° and black oxide bits are 135° HD.
Drilling tips
A long bit whips if you crowd it. Start with a shorter bit so the hole is on location and straight, then follow with the long one. Run at low speed, keep the drill square and supported, and back out often to clear chips before they pack.
Do not lean on the drill. Let the bit feed at its own pace and stop if it begins to bind. Cutting oil helps in steel.
Free shipping on orders over $200. Trade accounts can reorder in a click from My Toolbox, or call (833) 438-6657.
Long runs through framing18" and 24" bits
The most common lengths in the range, in sizes such as 1/4", 3/8" and 1/2".
Very long reach36" to 72" bits
Lengths of 36", 48", 60" and 72", such as 1/4" x 60" and 1/4" x 72".
Shorter reach is enoughAircraft extension, 6" and 12"
Less flex and easier to control when 12" or less will do.See the range →Common questions
What lengths are available?
18", 24", 36", 48", 60" and 72". The 18" length is the most common in the range.
How do I stop a long bit from wandering?
Start the hole with a shorter bit, then switch to the long one. Run at low speed, keep the drill square, and pull out often to clear chips.
How large can the hole be?
Sizes run from 1/8" up to 1" diameter. The 1" size is listed in 18" length, and most of the range is 18".
Know-how for High-Speed Drill Bits Extra Length (18" and up)
All guides →
Buying for a crew?
Call 833-438-6657, 8 AM to 4 PM MST. We know the parts, not just the part numbers.