A-1

Single Drill, On Grade Unit

The A-1 can be configured four different ways. There is no need to purchase extra conversion kits.
A-1-48 Pneumatic Drill

One wheel on grade
for drilling 6" to corner

A-1 configured with one wheel on grade
A-1 Wall Drill Configuration
Wall configuration
for zero clearance drilling

A-1 Vertical Configuration
Two wheel on grade for more accurate drilling Vertical configuration for all vertical applications
Specifications shown are standard. Variations to the standard are available.
Dust Collection Available.
Model A-1-48 A-1-36 A-1-30 A-1-24
Drill Steel Shank .875" x 4.25"
(22.2mm x 107.9mm)
.875" x 4.25"
(22.2mm x 107.9mm)
.875" x 3.25"
(22.2mm x 82.6mm)
.875" x 3.25"
(22.2mm x 82.6mm)
Drill Steel Length 24"(61.0cm)
Under Collar
12"(30.5cm)
Under Collar
12"(30.5cm)
Under Collar
9"(22.9cm)
Under Collar
Drill Bit Diameter .625" to 2.50"
(15.9mm to 63.5mm)
.625" to 2.50"
(15.9mm to 63.5mm)
.625" to 1.625 "
(15.9mm to 41.3mm)
.625" to 1.00 "
(15.9mm to 25.4mm)
*Maximum Drill Depth 18" (45.7cm) 10" (25.4cm) 10" (25.4cm) 7" (17.8cm)
Drill Distance From Top of Slab

3" to 12"
(7.6cm to 30.5cm)

3" to 12"
(7.6cm to 30.5cm)
3" to 12"
(7.6cm to 30.5cm)
3" to 12"
(7.6cm to 30.5cm)
Minimum Cutout Width 48" (121.9cm) 36" (91.4cm) 30" (76.2cm) 24" (61.0cm)
SCFM Required 92.2 (2.61m3/min) 92.2 (2.61m3/min) 75 (2.12m3/min) 36 (1.02m3/min)
PSIG Required 90 (0.62MPa) 90 (0.62MPa) 90 (0.62MPa) 90 (0.62MPa)
Weight 200 lbs. (90.7kg) 185 lbs. (83.9kg) 170 lbs. (77.1kg) 150 lbs. (68.0kg)
*Based on 2 piece steel and bits. Whirlybits should be 1" longer for maximum drilling depth.