BT 121 Earth Auger
Standard Features:
  • Advanced vibration dampening system with oversized hip pad
  • Has STIHL Quickstop® auger brake
  • Lightweight and easy to handle
  • Double gear reduction for better auger performance
  • Single-handle engine throttle control
  • Transmission lock-out for easy start and to make auger "back out" easier
Optional Accessories:
  • Auger Bits
  • 1.6" dia. 27-3/8" length
  • 2.4" dia. 27-3/8" length
  • 3.5" dia. 27-3/8" length
  • 4.7" dia. 27-3/8" length
  • 5.9" dia. 27-3/8" length
  • 7.9" dia. 27-3/8" length
  • Planting Auger Bits
  • 5.9" dia. 20-5/8" length
  • 10.2" dia. 20-5/8" length
  • Other Accessories
  • 17" Extension


        
DISPLACEMENT
30.8 cc (1.88 cu. in.)
ENGINE POWER
1.3 kW (1.75 bhp)
WEIGHT (powerhead only)
9.4 kg (20.7 Ibs.)
FUEL CAPACITY
640 cc (21.6 oz)
DRILLING GEAR SPEED
190 rpm
GEAR REDUCTION
47.5:1
TORQUE (engine)
1.7 Nm (1.25 ft/lb.)
TORQUE (auger)
79.0 Nm (58.22 ft/lb.)
Augers and Drills
STIHL Augers and Wood Drills

Professional contractors and landscapers need the right tool for the job.
That's where you can count on STIHL. We offer a lightweight,
gasoline-powered wood boring drill that's ideal for building docks, fences
or outbuildings. It's also great for pest service and tree service
professionals, and for crews constructing docks and retainer walls.

STIHL augers can help you with mass flower plantings and putting in small
decorative post and sign holes. And, when it comes to deep root
fertilization and digging fence post holes, count on a STIHL auger to help
you get the job done right.
BT 45 STIHL Wood Boring Drill
Occassional User
Good news — a lightweight gas powered wood boring drill you
can rely on. Ideal for building or repairing docks and
bulkheads, fences, retaining walls and other structures, the
dependable and powerful BT 45 wood boring drill lets you
work in places where electricity isn't available. This well-
balanced drill features a primer bulb and throttle lock for
easier starting and a compact ergonomic design, making it
easy to operate.

Standard Features:

Gasoline-powered engine lets you work outdoors without
electrical power
Dependable, powerful and lightweight engine that features:
primer bulb and throttle lock for easy starting, easy-access air
filter, electronic ignition, exclusive toolless fuel cap, two-ringed
piston and compact, streamlined ergonomic design that makes
it easy to operate
Anti-vibration system for comfortable use
Two-speed gearbox, with a neutral position as well as a
reverse gear
Toolless chuck accepts 1/2" drive bits up to 1" in diameter
Friction clutch is designed to slip if bit stalls
Balanced design with well-spaced handles
Front handle is easily adjustable (360° rotation)
Can be converted to planting auger with kit
Optional Accessories:
Carry strap and snap strap accessories
Available tool bits:
1/2"x12-1/2"
3/4"x18"
7/8"x18"
1"x18"
Water attachment for core drills
Optional core drill adapter converts the BT 45 into a handheld
core drill for added versatility.
Optional carry
strap accessory
Optional core
drill adapter
BT 45 STIHL Planting Auger
Occassional User
Not only does the BT 45 planting auger have a dependable and
powerful engine, it's also lightweight and comfortable to use thanks
to an advanced anti-vibration system. Ideal for mass flower
plantings or deep root fertilization, this specialized small
landscaping auger features a compact, streamlined ergonomic
design making it easy to operate. The best part— its gasoline
powered engine lets you work outdoors where electricity isn't
available.

NOTE: The BT 45 planting auger is not for rocky, compacted soil or
drilling large post holes.

Standard Features:

Gasoline-powered engine lets you work outdoors without electrical
power
Dependable, powerful and lightweight engine that features: primer
bulb and throttle lock for easy starting, easy-access air filter,
electronic ignition, exclusive toolless fuel cap, two-ringed piston,
compact, streamlined ergonomic design that makes it easy to
operate
Anti-vibration system for comfortable use
Two-speed gearbox, with a neutral position as well as a reverse
gear
Adapter accepts threaded "Bosch" style bits
"Bosch" type adaptor accepts: 3", 4", 5" bits
Friction clutch is designed to slip if bit stalls
Balanced design with well-spaced handles
360° rotating front handle
Can be converted to wood drill with kit
Optional Accessories:

Carry strap and snap strap accessories
Optional carry strap accessory
BT 45 STIHL Planting Auger
DISPLACEMENT
27.2 cc (1.6 cu. in.)
ENGINE POWER
0.8 kW (1.07 bhp)
WEIGHT
4.8 kg (10.5 lbs.)
FUEL TANK CAPACITY
250 cc (8.5 oz.)
DRILL SPEED
1st Gear: 663 rpm
2nd Gear: 1,972 rpm
Reverse: 590 rpm
Small, specialized auger for mass flower plantings, small post and sign holes, or
deep root fertilization.
BT 45 Wood Boring Drill
DISPLACEMENT
27.2 cc (1.6 cu. in.)
ENGINE POWER
0.8 kW (1.07 bhp)
WEIGHT
4.8 kg (10.5 lbs.)
FUEL TANK CAPACITY
250 cc (8.5 oz.)
DRILL SPEED
1st Gear: 663 rpm
2nd Gear: 1,972 rpm
Reverse: 590 rpm
Lightweight wood boring drill.
Ideal for building or repairing docks and bulkheads, fences, outbuildings, retaining
walls and other structures where electricity is not available.