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Drawbar Force Gauge CAT/BT - Spindle Clamp Force Tester

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  • Part #:  K7300
  • Stock:  YES - Can Ship Immediately
  • New

Our Clamprite Drawbar Gauge Kits provide an easy, accurate, and economical method of checking the drawbar force of a spindle for your machine. Spindles require maintenance and checking the drawbar frequently which takes less then a minute. This can increase tool life as well as save huge costs including a new spindle, downtime, or paid service. A spindle clamp force gauge is also commonly known as a spindle drawbar dynamometer. Our Clamp right gauge kits are furnished in a metal tool box and include the gauge head, a spindle adapter, and an internal screw coupling that accepts the pull studs. Collect pull studs from each of your machines and store them in the clamprite case for easy access.

Digital dynamometers cost three times as much and are more delicate and prone to problems when they are dropped or used during machine repair. Clamp rite is similar to Command and Forcecheck dyno or dynomometers.

Why is a Drawbar Dynamometer a must have tool for every machine shop?

  • Cost of spindle $10,000-25,000
  • Throwing tools? ATC problems?
  • Cost of a service tech to determine why the machine accuracy is bad
  • Cost of out-of-tolerance scrap parts
  • Shipping bad parts to your customer (Priceless!)
  • Excessive tooling consumption- loss of tooling rigidity
  • Injury of employee if/when tool is thrown
  • Scheduled downtime not Emergency service
  • Most service companies may not have this tool in their van when they come, which means they are looking for other problems. This check takes less than 1 minute to perform if you have the right tool for the job.
  • Ever wonder why you can't run some jobs on certain machines? It could be the drawbar force is low.
Spindle Drawbar Force gauge Kit
(complete kit with gauge
head and metal toolbox)
Lb. Max
Price Part#
BT 30 3,000 $819 K7300-1
BT 40 3,000 $829 K7300-2
CAT 40 3,000 $829 K7300-3
BT 40 5,000 $829 K7300-4
CAT 40 5,000 $829 K7300-5
CAT 45 5,000 $985 K7300-24
BT 45 5,000 $985 K7300-25
BT 50 5,000 $849 K7300-6
CAT 50 5,000 $849 K7300-7
CAT 50 & BT50 5,000 $1140 K7300-26
BT 40 & 50 5,000 $989 K7300-8
CAT 40 & 50 5,000 $989 K7300-9
CAT 40 & BT40 5,000 $989 K7300-12
BT40 & BT50 5,000 $989 K7300-13
BT 50 (High Pressure) 10,000 $885 K7300-10
CAT 50 (High Pressure) 10,000 $885 K7300-11
CAT 60 15,000 $1528 K7300-36
ISO 30 Pull Force Tester 1,500 $940 K7300-32
ISO 40 Pull Force Gauge 3,000 $1060 K7300-33
ISO 50 Pull Force Gauges 5,000 $1085 K7300-34
Spindle gauge
adapters only
Price Part#
BT 30 Spindle Adapter $155 K7300-15
BT 35 Spindle Adapter $158 K7300-21
BT 40 Spindle Adapter $173 K7300-16
CAT 40 Spindle Adapter $173 K7300-17
BT 45 Spindle Adapter $198 K7300-22
CAT45 Spindle Adapter $198 K7300-23
BT 50 Spindle Adapter  $198 K7300-18
CAT 50 Spindle Adapter  $198 K7300-19
CAT 60 Spindle Adapter $539 K7300-35
ISO 30 adapter $160 K7300-27
ISO 40 adapter $90 K7300-20
ISO 50 adapter $100 K7300-28
Coupler only converts CAT50 to BT50 $100 K7300-29


Gauge Head Price Part#
CG1.5K 1500 lb. $679 K7300-44
CG3K 3000 lb. $679 K7300-43
CG5K 5000 lb. $679 K7300-40
CG10K 10,000 lb. $719 K7300-41
CG15K 15,000 lb. $989 K7300-42

Pull Stud Thread Size Standards
CAT40 (5/8 -11)
CAT50 (1in -8)
BT30   - M12 x 1.75
BT40   - M16 X 2.0
BT50   - M24 X 3.0
ISO Standard - has a flange like CAT but with Metric threads like BT.

Pressure gauge size when ordering: Most machine tools fall within the 3,000 to 5,000 lb range. It is rare that you would need a 10,000 lb. unit. A 5000 lb. gauge head is usually sufficient for most shops. If you do not have any 50taper machines we recommend the 3,000 lb. unit. If the gauge head is to be used for a wide variety of 30,40,50 taper spindles then we recommend the 5000psi drawbar force gauge.

Optional- ISO adapter This is typically sold to Europe, Asia, and the surrounding countries. This adapter provides METRIC threads for the retention knob to screw into instead of standard inch threads. ISO 30 adapter needs both taper and coupling.

CAT/BT differences - The CAT 40 is .112 longer than the BT 40, (and the BT has a metric thread) two different taper adapters would be required as well as a coupling. The CAT and BT 50 Taper adapter is identical so an extra BT coupling is only needed to change over gauge head.

Machining with low drawbar force is like machining with a loose cutter!

Spindle Clamp - Drawbar force gauge dynamometer / dynomometer gauge, Spindle Tool Clamp Force Tester gauge.

Select a clamp rite kit below which includes toolbox, gauge head and adapters. If you would like a different combination of adapters select them additionally below. Only select a gauge head if you need a replacement one.

Questions? not finding what you are looking for?
Fill out our Request Quote form or give us a call. (414) 881-4493

Must select from options below before adding to cart:

Includes Head With Adapter and Toolbox

Drawbar Gage Set

Select only if you need an adapter

Additional Adapters

Gage Head

Add to Cart:

  • Part #:  K7300
  • Stock:  YES - Can Ship Immediately