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How does a hand bender app track deduct and take-up for each tool?

Bender Profiles is where PipeMaster keeps one entry per tool instead of a paint-marker label on the shoe: take-up (deduct), centerline radius and mark style. Read the number off the list instead of squinting at a worn stamp — but it's a reference card, not a calculator, so you still type the deduct into the 90° screen yourself.

3 min read · Updated 2026-09-10

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What a hand bender app can do for your take-up

Every hand bender has its own take-up, also called deduct: how much shorter the marked leg comes out because of the bender's shoe radius. Carry two or three benders on the truck and it's easy to mix up which number belongs to which tool, especially once the stamped mark has worn off.

PipeMaster keeps that number per tool in Bender Profiles, so the app works as a lookup list for your benders, not a replacement for them.

What a profile stores

  • Name — however you label the bender, for example by trade size or brand.
  • Conduit Type and Trade Size — which conduit and size the shoe is built for.
  • Take-up / Deduct — the number you subtract from the stub height.
  • Centerline Radius — used for the gain formula.
  • Mark Style — Arrow, Star or Hook, matching the symbol stamped on the shoe, so you remember which mark to line up.
  • Notes — anything else: where you measured the take-up, a serial number, a reminder it runs long.

Free profiles and adding your own

The free version shows six built-in Generic EMT Bender profiles, 1/2" to 2", with commonly published take-up and radius values. Adding your own bender needs PipeMaster Pro: open Bender Profiles and tap New Bender.

  1. Open Bender Profiles from the main list.
  2. Tap New Bender (Pro).
  3. Fill in Name, Conduit Type and Trade Size.
  4. Enter your bender's own Take-up / Deduct and Centerline Radius, measured off the tool or from a test bend.
  5. Pick the Mark Style that matches the shoe, add any Notes, then tap Save.
  6. Later, open the profile, read Take-up / Deduct, and type that number into Deduct on the 90° / Stub-Up or Kick + 90° screen.

Why the generic numbers may be wrong for your tool

Published deduct charts assume a shoe radius that varies by brand and sometimes by batch. The only way to know your bender's real take-up is to bend a test stub, measure it, and back-calculate: take-up = stub height you marked − the leg you actually got. Save that number as a profile once, and you stop re-measuring it.

Worked example: saving a measured take-up

A 1" hand bender is published at an 8" deduct with a 5 3/4" centerline radius, but a test bend shows the real take-up is 8 1/2". Saved as a profile and then used on the 90° / Stub-Up screen for a 30" stub:

90° / Stub-Up with the profile's measured deduct
Height of the 90° LegDeduct (from the profile)Centerline RadiusDistance from End to BendGain
30"8 1/2"5 3/4"21 1/2"2 15/32"

Using the published 8" deduct instead would have marked the leg 1/2" too long. The profile exists so you only measure that once per bender.

Limits worth knowing

  • Profiles are not linked to the calculators: there is no auto-fill, you copy the Take-up / Deduct number across yourself.
  • The free version can view and use the six generic profiles but cannot add, edit or delete your own; that needs Pro.
  • Mark Style is a label for your own reference; it does not change any calculation.

Questions and answers

Does a hand bender app know my bender's take-up automatically?
No app reads a mechanical bender over the air. PipeMaster's Bender Profiles store the number you measured or looked up, and you type it into the Deduct field yourself; the calculators do not read the profile.
Can I add more than the six built-in bender profiles for free?
No. The free version can view and use the six generic EMT profiles. Adding, naming and saving your own bender, with its own take-up and radius, needs PipeMaster Pro.
What is the Mark Style field for?
It records whether your bender's shoe stamps an Arrow, a Star or a Hook at the take-up point, so the profile reminds you which symbol to line up on the conduit. It is notes, not a setting that changes a result.
How do I find my hand bender's real take-up?
Mark a stub at a known height, bend it to 90°, then measure the finished leg. Take-up = the height you marked minus the leg you got. Save that number in a Bender Profile so you only measure it once.

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