Greenlee iron hand bender: radius, deduct and gain
The Greenlee iron hand bender is a hand bender for EMT, rigid (RMC), and IMC, 1/2" to 1-1/4". These are the numbers BendMate uses for each of its shoes.
Part numbers: 840F, 841F, 842F, 843F (FH with handle)
Specs by shoe
| Size | Centerline radius | Deduct | Gain | Notes |
|---|---|---|---|---|
| 1/2" EMT | 4 3/16" | 5" | 2 1/2" | Gain worked out from the radius. 840F head. Same radius and deduct as the aluminum head. |
| 3/4" EMT | 5 1/8" | 6" | 3 1/8" | Gain worked out from the radius. 841F head. Same radius and deduct as the aluminum head. |
| 1/2" RMC | 5 1/8" | 6" | 3 1/16" | Gain worked out from the radius. 841F head (3/4 EMT groove). Greenlee prints one radius and one deduct per head. |
| 1/2" IMC | 5 1/8" | 6" | 3" | Gain worked out from the radius. 841F head (3/4 EMT groove). Greenlee prints one radius and one deduct per head. |
| 1" EMT | 6 1/2" | 8" | 3 15/16" | Gain worked out from the radius. 842F head. Same radius and deduct as the aluminum head. |
| 3/4" RMC | 6 1/2" | 8" | 3 13/16" | Gain worked out from the radius. 842F head (1 EMT groove). Greenlee prints one radius and one deduct per head. |
| 3/4" IMC | 6 1/2" | 8" | 3 13/16" | Gain worked out from the radius. 842F head (1 EMT groove). Greenlee prints one radius and one deduct per head. |
| 1-1/4" EMT | 9 5/8" | 11" | 5 5/8" | Gain worked out from the radius. 843F head. Same radius and deduct as the aluminum head. |
| 1" RMC | 9 5/8" | 11" | 5 7/16" | Gain worked out from the radius. 843F head (1-1/4 EMT groove). Greenlee prints one radius and one deduct per head. |
| 1" IMC | 9 5/8" | 11" | 5 7/16" | Gain worked out from the radius. 843F head (1-1/4 EMT groove). Greenlee prints one radius and one deduct per head. |
Marks on the shoe
- 1ArrowLine your marks up here. This is the arrow the app’s marks are for.Printed as “Arrow”
- 245° 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 “3-Bend Saddle Notch”
- 3StarThe back of a 90: for a 90 measured to its back, like the second of two back-to-back 90s.Printed as “Star Mark”
- 4Angle linesThe conduit lines up with each one as the bend reaches that angle, bending in the air.Printed as “Handle Down Angle Marks”
- 5Sight marksSight past these to read the angle when bending on the floor.Printed as “Site-Rite Angle Marks”
- 6Offset multipliersThe offset multiplier for each angle, for working an offset out by hand.Printed as “Offset Multiplier”
The angle is read on the lines and marks on the head.
Where the numbers come from
Bend with the Greenlee 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 Greenlee iron hand bender?
5". Subtract it from the stub length to find where to mark a 90. The shoe’s centerline radius is 4 3/16" and its back-of-90 gain is 2 1/2".
What is the deduct for 3/4" EMT on the Greenlee iron hand bender?
6". Subtract it from the stub length to find where to mark a 90. The shoe’s centerline radius is 5 1/8" and its back-of-90 gain is 3 1/8".
What is the deduct for 1" EMT on the Greenlee iron hand bender?
8". Subtract it from the stub length to find where to mark a 90. The shoe’s centerline radius is 6 1/2" and its back-of-90 gain is 3 15/16".
What is the deduct for 1-1/4" EMT on the Greenlee iron hand bender?
11". Subtract it from the stub length to find where to mark a 90. The shoe’s centerline radius is 9 5/8" and its back-of-90 gain is 5 5/8".
Brand and model names only identify the bender. BendMate isn’t affiliated with or endorsed by Greenlee. Check the numbers against the markings on your own bender.