KATO Round Electric Driver

KATO Round Shaft Installation Tools

The Original Tangless Installation Tool.

KATO has transitioned over to the all new KFS-20 brushless electric driver.

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

For the fastest & most productive semi-automatic installation system. KATO recommend switching to the New 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 Tools? KATO Offers a free Hex Kit (hex sleeve and pin) to enable Tangless customers to easily switch to the new KFS-20 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)
  • Clean and quiet, ideal for clean room operation.
  • 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 G - Nylon Guard (where applicable)
H - Adusting Sleeve Housing without Nylon Guard (where applicable)
M - Mandrel/Mandrel Assembly
S - Spacer Set (includes 3 spacers + 1 thick shim + 3 thin shims, where applicable)

How to Order:


Thread
Size
Tangless
Round Tool1
Tangless
Replacement
Mandrel
Tangless
Replacement
Pawl
Tanged
Round Tool
Optional Handle
Tangless Only
Unified Coarse
1-6442KREC-012KREC-01M2KIPC-01---Included
2-562KREC-022KREC-02M2KIPC-02KREC-022KREH-UI
4-402KREC-042KREC-04M2KIPC-04KREC-04
6-322KREC-062KREC-06M2KIPC-06KREC-06
8-322KREC-22KREC-2M2KIPC-2KREC-2
10-242KREC-32KREC-3M2KIPC-3KREC-3
12-24---------KREC-1
1/4-202KREC-42KREC-4M2KIPC-4KREC-4
5/16-182KREC-52KREC-5M2KIPC-5KREC-5
3/8-162KREC-62KREC-6M2KIPC-6KREC-6
Unified Fine2
0-8042KREF-002KREF-00M2KIPF-00---Included
10-322KREF-F3

2KREF-L3
2KREF-F3M

2KREF-L3M
2KIPF-3KREF-32KREH-UI
Metric Coarse2
M2X.44 2KREM-F2

2KREM-L2
2KREM-F2M

2KREM-L2M
2KIPM-2 --- Included
M2.5X.45 2KREM-F2.5

2KREM-L2.5
2KREM-F2.5M

2KREM-L2.5M
2KIPM-2.5 KREM-2.5 2KREH-UI
M3X.5 2KREM-F3

2KREM-L3
2KREM-F3M

2KREM-L3M
2KIPM-3 KREM-3
M3.5X.6 --- --- --- KREM-3.5
M4X.7 2KREM-F4

2KREM-L4
2KREM-F4M

2KREM-L4M
2KIPM-4 KREM-4
M5X.8 2KREM-F5

2KREM-L5
2KREM-F5M

2KREM-L5M
2KIPM-5 KREM-5
M6X1 2KREM-F6

2KREM-L6
2KREM-F6M

2KREM-L6M
2KIPM-6 KREM-6
M8x1.253 2KREM-F8

2KREM-L8
---

---
See Notes KREM-8
M10x1.53 2KREM-F10

2KREM-L10
---

---
See Notes ---
M12X1.753 2KREM-F12

2KREM-L12
---

---
See Notes ---

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 these smaller thread sizes, KATO recommends manual installation only. These tools include a gage handle.

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
A Length B Dia. C Dia. A Length B Dia.
Unified Coarse
2-562.840.240.373.000.25
4-402.950.240.373.020.28
6-322.940.380.373.000.31
8-322.990.320.373.000.31
10-243.000.380.373.010.38
12-24------------3.010.38
1/4-203.000.370.443.060.45
Unified Fine
0-801.820.240.27------
10-323.110.380.443.000.39
Metric Coarse
M2X.42.730.240.38--------
M2.5X.452.730.240.373.000.25
M3X.52.710.240.372.980.24
M3.5X62.730.240.372.980.24
M4X.73.000.240.373.000.32
M5X.83.110.240.372.990.38
M6X13.090.440.443.010.44
M8X1.253.880.510.513.040.56
M10X1.54.110.610.61------
M12X1.754.510.690.69------

Cross Reference


Tangless Tools

KATO
Part Number
Superseded
Part Number
Helicoil
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-M2.5F---
2KREM-L2.5CT16002-M2.5L---
2KREM-F3CT16002-M3F---
2KREM-L3CT16002-M3L---
2KREM-F4CT16002-M4F---
2KREM-L4CT16002-M4L---
2KREM-F5CT16002-M5F---
2KREM-L5CT16002-M5L---
2KREM-F6CT16002-M6F---
2KREM-L6CT16002-M6L---
2KREM-F8CT16002-M8F---
2KREM-L8CT16002-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.

Comparison Chart

KATO Hex Electric Tool
Hex Electric
CT5420
KATO Prewinder Electric Tool
Prewinder Electric
CT5420
KATO Hex Electric Tool
Hex Electric
CT5408
KATO Prewinder Electric Tool
Prewinder Electric
CT5408
KATO Round Electric Tool
Round Electric
CT5405
KATO Round Electric Tool
Round Electric
CT5406
Brushless Motor
Power Supply Included
Designed for
Strip-Feed
Utilizes Prewinder Adapter
Insert Size
Capability
up to 3/8" & M12 up to 1/4" & M6 up to 3/8" & M12 up to 1/4" & M6 2-56 to 8-32 8-32 to 3/8"
RPM
High & Low
1000 / 690 1000 / 690 1000 / 700 1000 / 700 1000 / 670 910 / 600
Volume (Qty)

Medium to High
Bulk User
Medium to High
Strip Feed User
Medium to High
Bulk User
Medium to High
Strip Feed User
Medium
Bulk User
Medium
Bulk User
Weight

12.6 oz 14.5 oz 16.2 oz 16.5 oz 15.6 oz 28.1 oz
Length

8.5 in. 9.5 in. 9 in. 10 in. 9 in. 11 in.
Chuck

Quick-Disconnect
Keyless Chuck
Quick-Disconnect
Keyless Chuck
Quick-Disconnect
Keyless Chuck
Quick-Disconnect
Keyless Chuck
Chuck Key Required Chuck Key Required
Learn More

KHE Series KPE Series KHE Series KPE Series KRE Series KRE Series