Milwaukee iron hand bender: radius, deduct and gain
The Milwaukee iron hand bender is a hand bender for EMT, rigid (RMC), and IMC, 1/2" to 1". These are the numbers BendMate uses for each of its shoes.
Part numbers: 48-22-4080, 48-22-4081, 48-22-4082
Specs by shoe
| Size | Centerline radius | Deduct | Gain | Notes |
|---|---|---|---|---|
| 1/2" EMT | 4" | 5" | 2 7/16" | Centerline radius: NEC minimum radius; check against your bender Gain worked out from the radius. 48-22-4080. Stub 5 is cast on the head (Milwaukee product photo). Milwaukee publishes no radius or gain; radius is the NEC minimum, so gain and shrink are estimates. Measure your bender. |
| 3/4" EMT | 4 1/2" | 6" | 2 7/8" | Centerline radius: NEC minimum radius; check against your bender Gain worked out from the radius. 48-22-4081. Stub 6 is cast on the head (Milwaukee product photo). Milwaukee publishes no radius or gain; radius is the NEC minimum, so gain and shrink are estimates. Measure your bender. |
| 1/2" RMC | 4 1/2" | 6" | 2 3/4" | Centerline radius: NEC minimum radius; check against your bender Gain worked out from the radius. 48-22-4081 head (3/4 EMT groove). Radius is the NEC minimum for the head's 3/4 size, not measured. |
| 1/2" IMC | 4 1/2" | 6" | 2 3/4" | Centerline radius: NEC minimum radius; check against your bender Gain worked out from the radius. 48-22-4081 head (3/4 EMT groove). Radius is the NEC minimum for the head's 3/4 size, not measured. |
| 1" EMT | 5 3/4" | 8" | 3 5/8" | Centerline radius: NEC minimum radius; check against your bender Gain worked out from the radius. 48-22-4082. Stub 8 is cast on the head (Milwaukee product photo). Milwaukee publishes no radius or gain; radius is the NEC minimum, so gain and shrink are estimates. Measure your bender. |
| 3/4" RMC | 5 3/4" | 8" | 3 1/2" | Centerline radius: NEC minimum radius; check against your bender Gain worked out from the radius. 48-22-4082 head (1 EMT groove). Radius is the NEC minimum for the head's 1 in size, not measured. |
| 3/4" IMC | 5 3/4" | 8" | 3 1/2" | Centerline radius: NEC minimum radius; check against your bender Gain worked out from the radius. 48-22-4082 head (1 EMT groove). Radius is the NEC minimum for the head's 1 in size, not measured. |
Marks on the shoe
- 1ArrowLine your marks up here. This is the arrow the app’s marks are for.Printed as “Alignment Arrow”
- 230° center notchThe center of a 30° bend: line up a mark placed on a bend’s center, like a three-point saddle’s middle bend.Printed as “Center of Saddle Bend Notch”
- 345° center notchThe center of a 45° bend: line up a mark placed on a bend’s center, like a three-point saddle’s middle bend.Printed as “Center of Saddle Bend Notch”
- 445° teardropThe center of a 45° bend: line up a mark placed on a bend’s center, like a three-point saddle’s middle bend.
- 5StarThe back of a 90: for a 90 measured to its back, like the second of two back-to-back 90s.Printed as “Back of 90° Bend Indicator”
- 660° center notchThe center of a 60° bend: line up a mark placed on a bend’s center, like a three-point saddle’s middle bend.Printed as “Center of Saddle Bend Notch”
- 7Angle linesThe conduit lines up with each one as the bend reaches that angle, bending in the air.Printed as “Angle Indicators”
- 8Offset multipliersThe offset multiplier for each angle, for working an offset out by hand.Printed as “Offset Multipliers”
The angle is read on the lines and marks on the head.
Where the numbers come from
Bend with the Milwaukee iron hand bender in BendMate
Choose it in the app and every mark comes from these numbers. Edit any of them to match your own bender.
Common questions
What is the deduct for 1/2" EMT on the Milwaukee iron hand bender?
5". Subtract it from the stub length to find where to mark a 90. The shoe’s centerline radius is 4" and its back-of-90 gain is 2 7/16".
What is the deduct for 3/4" EMT on the Milwaukee iron hand bender?
6". Subtract it from the stub length to find where to mark a 90. The shoe’s centerline radius is 4 1/2" and its back-of-90 gain is 2 7/8".
What is the deduct for 1" EMT on the Milwaukee iron hand bender?
8". Subtract it from the stub length to find where to mark a 90. The shoe’s centerline radius is 5 3/4" and its back-of-90 gain is 3 5/8".
What is the deduct for 1/2" RMC on the Milwaukee iron hand bender?
6". Subtract it from the stub length to find where to mark a 90. The shoe’s centerline radius is 4 1/2" and its back-of-90 gain is 2 3/4".
Brand and model names only identify the bender. BendMate isn’t affiliated with or endorsed by Milwaukee. Check the numbers against the markings on your own bender.