KATO Round Electric Driver

KATO Round Shaft Installation Tools

The Original Tangless Installation Tool.

KATO has transitioned over to the all new KFS-30 Cordless driver, KFS-20 and KFS-25 brushless electric drivers.

KATO maintains the round shaft tools (formerly round electric) for customers still using legacy electric drivers with a keyed chuck system and Tangless round shaft tools for manual installation only.

KATO recommends switching to the Hex Electric installation tools to increase productivity and reduce cost. Learn more.

For the fastest & most productive semi-automatic cordless installation system. KATO recommends switching to the Prewinder Electric Tool. Learn more.

How to Order - Complete Tool Requires the Following Parts:

Front Assembly

Round Shaft Mandrel Assembly

(See Part No.)

The KRE Mandrel Assembly is designed to install up to 3 Dia nominal length CoilThread Inserts. The slim profile makes it possible to install CoilThread inserts in hard to reach places. For information on specific sizes, see Part Numbers.

Tangless Handle

Tangless Handle

2KREH-UI

The Tangless 2KRE Series Mandrel Assembly with OPTIONAL handle (2KREH-UI) can be used for manual installation.

Hex Kit

Hex Kit

Tangless Only

Already have Round Electric Tools (2KRE series)? KATO offers a free Hex Kit (hex sleeve and pin) to enable KATO Tangless customers to easily switch to the new KFS-20 & KFS-25 brushless hex electric driver.

Features & Benefits

  • Available for both Tangless and tanged CoilThread inserts.
  • Utilizes KATO's new One Pawl Fits All system. (Tangless only)
  • Compatiable with screw thread inserts from Helicoil, Recoil and others.
  • Tangless round shaft mandrels can be used for manual installation with the optional handle (2KREH-UI).

Part Numbers


For fast and accurate part numbers and technical information on specific inserts try out the KATO Product Wizard.

Example of a KATO Round Electric tool part number:


2 KRE C -    02     

1   2    3   4  5   6


1
Tool Type
2
Tool Style
3
Thread
Designation
4
Mandrel
5
Size Designation
6
Component / Replacement Part
Blank - For CoilThread (Tanged)
2 - Prefix for CoilThread II Tangless inserts
KRE - KATO Round Electric C - Unified Coarse
F - Unified Fine
M - Metric
(UNF & Metric Only)
F
- Free-Running
L - Locking
Chart Below (Tangless Only)
G - Nylon Guard
H - Adusting Sleeve Housing without Nylon Guard
M - Replacement Mandrel

How to Order:


Thread
Size
Tangless
Round Tool1
Tanged
Round Tool
Optional Handle
Tangless Only
Hex Kit
Unified Coarse
1-6442KREC-01---Included---
2-562KREC-02KREC-022KREH-UI2KHEX-1K
4-402KREC-04KREC-04
6-322KREC-06KREC-06
8-322KREC-2KREC-2
10-242KREC-3KREC-3
12-24---KREC-1
1/4-202KREC-4KREC-4
5/16-182KREC-5KREC-5
3/8-162KREC-6KREC-6
Unified Fine2
0-8042KREF-00---Included---
10-322KREF-F3

2KREF-L3
KREF-32KREH-UI2KHEX-1K
Metric Coarse2
M2X.44 2KREM-F2

2KREM-L2
--- Included ---
M2.5X.45 2KREM-F2.5

2KREM-L2.5
KREM-2.5 2KREH-UI 2KHEX-1K
M3X.5 2KREM-F3

2KREM-L3
KREM-3
M3.5X.6 --- KREM-3.5
M4X.7 2KREM-F4

2KREM-L4
KREM-4
M5X.8 2KREM-F5

2KREM-L5
KREM-5
M6X1 2KREM-F6

2KREM-L6
KREM-6
M8x1.253 2KREM-F8

2KREM-L8
KREM-8
M10x1.53 2KREM-F10

2KREM-L10
---
M12X1.753 2KREM-F12

2KREM-L12
---

Please Note:

  1. The Tangless Mandrel Assembly consists of the installation mandrel (round shaft), installation pawl, spring, pin, wrenches, and adjusting sleeve fully assembled and ready for use. For manual installation order the optional handle 2KREH-UI handle.
  2. For Improved Tangless installation UNF & Metric thread sizes use a different installation mandrel for Free-Running and Locking CoilThread inserts, this is indicated by the -F and -L designation in the part number. KATO strongly recommends using the Prewinder Electric Tool (KPE) for Fine and Metric thread size.
  3. Not compatible with the KATO One Pawl Fits All system at this time.
  4. For smaller thread sizes, manual installation only. These tools include a gage handle.


Tangless Replacement Parts

Thread
Size
Replacement
Pawl
Replacement
Pawl Kit1
Replacement
Mandrel
Adjusting
Sleeve Housing
Nylon Guard
Unified Coarse
1-642KIPC-012KIPC-01K2KREC-01M2KREC-01H---
2-562KIPC-022KIPC-02K2KREC-02M2KREC-02H2KREC-02G
4-402KIPC-042KIPC-04K2KREC-04M2KREC-04H2KREC-04G
6-322KIPC-062KIPC-06K2KREC-06M2KREC-06H2KREC-06G
8-322KIPC-22KIPC-2K2KREC-2M2KREC-2H2KREC-2G
10-242KIPC-32KIPC-3K2KREC-3M2KREC-3H2KREC-3G
12-24---------------
1/4-202KIPC-42KIPC-4K2KREC-4M2KREC-4H2KREC-4G
5/16-182KIPC-52KIPC-5K2KREC-5M2KREC-5H2KREC-5G
3/8-162KIPC-62KIPC-6K2KREC-6M2KREC-6H2KREC-6G
Unified Fine
0-802KIPF-002KIPF-00K2KREF-00M2KREF-00H---
10-322KIPF-32KIPF-3K2KREF-F3M

2KREF-L3M
2KREF-3H2KREF-3G
Metric Coarse
M2X.42KIPM-22KIPM-2K2KREM-F2M

2KREM-L2M
2KREM-2H---
M2.5X.452KIPM-2.52KIPM-2.5K2KREM-F2.5M

2KREM-L2.5M
2KREM-2.5H2KREM-2.5G
M3X.52KIPM-32KIPM-3K2KREM-F3M

2KREM-L3M
2KREM-3H2KREM-3G
M3.5X.6---------------
M4X.72KIPM-42KIPM-4K2KREM-F4M

2KREM-L4M
2KREM-4H2KREM-4G
M5X.82KIPM-52KIPM-5K2KREM-F5M

2KREM-L5M
2KREM-5H2KREM-5G
M6X12KIPM-62KIPM-6K2KREM-F6M

2KREM-L6M
2KREM-6H2KREM-6G

Please Note:

  1. Replacement Pawl Kit - includes one pawl, two pins, and two springs.

Specifications

All dimensions for unified size (in.) | All dimensions are are for reference only.

Mandrel

Tangless CoilThread - 2KRE

Front End Assembly (2KPE)

Tanged CoilThread - KRE

Front End Assembly (2KPE)

Mandrel Spec

Thread
Size
2KRE - Tangless KRE - Tanged Weight
(lbs)
A Length B Dia. C Dia. A Length B Dia.
Unified Coarse
1-642.350.140.18------0.04
2-563.100.240.373.000.250.04
4-403.100.240.373.020.280.04
6-323.000.380.373.000.310.04
8-323.100.320.373.000.310.04
10-243.000.380.373.010.380.06
12-24------------3.010.380.06
1/4-203.100.370.443.060.450.06
5/16-183.510.700.703.003.000.06
3/8-163.680.700.703.004.000.06
Unified Fine
0-801.830.120.27------0.04
10-323.100.380.443.000.390.04
Metric Coarse
M2X.42.250.240.38--------0.04
M2.5X.452.650.240.373.000.250.04
M3X.52.700.240.372.980.240.04
M3.5X62.700.240.372.980.240.04
M4X.73.100.240.373.000.320.04
M5X.83.100.240.372.990.380.04
M6X13.100.440.443.010.440.04
M8X1.253.880.510.513.040.560.06
M10X1.54.110.610.61------0.06
M12X1.754.510.690.69------0.06

Cross Reference


Tangless Tools

KATO
Part Number
Superseded
Part Number
Helicoil
Part Number
Accurate
Part Number
Unified Coarse
2KREC-02CT16002-027571-02---
2KREC-02MCT16410-02BH------
2KREC-04CT16002-047571-04---
2KREC-04MCT16410-04BH------
2KREC-06CT16002-067571-06---
2KREC-06MCT16410-06BH------
2KREC-2CT16002-27571-2---
2KREC-2MCT16410-2BH------
2KREC-3CT16002-37571-3---
2KREC-3MCT16410-3------
2KREC-4CT16002-47571-4---
2KREC-4MCT16410-4------
Unified Fine
2KREF-F3CT16003-37572-3---
2KREF-F3MCT16411-3------
2KREF-L3CT16003-37572-3---
2KREF-L3MCT16411-3------
Metric Coarse
2KREM-F2---------
2KREM-F2.5CT16002-M2.5F7587-2.52CT10-M2.5F
2KREM-L2.5CT16002-M2.5L7587-2.5S2CT10-M2.5L
2KREM-F3CT16002-M3F7587-32CT10-M3F
2KREM-L3CT16002-M3L7587-3S2CT10-M3L
2KREM-F4CT16002-M4F7587-42CT10-M4F
2KREM-L4CT16002-M4L7587-4S2CT10-M4F
2KREM-F5CT16002-M5F7587-52CT10-M5F
2KREM-L5CT16002-M5L7587-5S2CT10-M5L
2KREM-F6CT16002-M6F7587-62CT10-M6F
2KREM-L6CT16002-M6L7587-6S2CT10-M6L
2KREM-F8CT16002-M8F---2CT10-M8F
2KREM-L8CT16002-M8L---2CT10-M8L
2KREM-F10---------
2KREM-L10---------
2KREM-F12---------
2KREM-L12---------

Tanged Tools

KATO
Part Number
Superseded
Part Number
Helicoil
Part Number
Unified Coarse
KREC-02CTSB-02C8051-02
KREC-04CTSB-04C8051-04
KREC-06CTSB-06C8051-06
KREC-1CTSB-1C8051-1
KREC-2CTSB-2C8051-2
KREC-3CTSB-3C8051-3
KREC-4CTSB-4C8051-4
Unified Fine
KREF-3CTSB-3F10089-3
KREF-4CTSB-4F10089-4
Metric Coarse
KREM-2.5CTSB-M2.5---
KREM-3CTSB-M3---
KREM-3.5CTSB-M3.5---
KREM-4CTSB-M4---
KREM-5CTSB-M5---
KREM-6CTSB-M6---
KREM-8CTSB-M8X1.25C---

Notes:

  • KATO SBT-50 Power Transformer (CT5407) cross references to Helicoil (8050-50) part number.
  • KATO CT5405 cross references to Helicoil 8050-400C part number.
  • KATO CT5406 cross reference to Helicoil 8050-650C part number.

Discontinued Drivers


Prewinder Driver (Blue)

Electric Driver

(CT5408)

Archive Pages.

Hex Driver (Blue)

Electric Driver

(CT5408)

Archive Pages.

Round Drivers

Electric Driver

(CT5405 & CT5406)

Archive Pages.

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