The Andrew CPT-BKS1 is a replacement blade kit for EASIAX Plus automated cable preparation tools. Each kit includes four steel cutting blades, rated for 150 cable preparations. It fits the CPT-L4ARC1, CPT-L45ARC, CPT-L1, CPT-L2, CPT-E2L2N and CPT-E2L2DIN. EASIAX Plus tools attach to a drill and cut the jacket, outer conductor and foam in one operation. Andrew is an Amphenol company and carries the former CommScope outdoor wireless product line.
Manufacturer part number: CPT-BKS1. Also searched as CPTBKS1, CPT BKS1 and CommScope CPT-BKS1.
Andrew CPT-BKS1 specifications
| Manufacturer | Andrew (an Amphenol company) |
|---|---|
| Part number | CPT-BKS1 |
| Product type | Tool accessory |
| Product line | EASIAX Plus® |
| Application | Cutting blade |
| Blades included | 4 |
| Cutting blade life | 150 cable preparations |
| Nominal sizes | 1/2 in, 1/4 in, 3/8 in |
| Material | Steel |
| Packed dimensions | 3.9 in H x 3.9 in W x 3.9 in L (99.06 mm each) |
| Gross weight | 0.882 lb (0.4 kg) |
| Packaging quantity | 4 |
| Compliance | RoHS, UK RoHS, China RoHS (below maximum concentration value), REACH-SVHC, ISO 9001:2015 |
Tools that use the CPT-BKS1
| Tool | Cable (per Andrew bulletin 237562) |
|---|---|
| CPT-L4ARC1 | LDF4-50A |
| CPT-L1 | LDF1-50 |
| CPT-L2 | LDF2-50 |
| CPT-L45ARC (listed as CPT-L45RC in the bulletin) | LDF4.5-50A |
| CPT-E2L2N | Not listed in the bulletin table. Andrew's tool page lists EFX2-50 and LDF2-50 Type N connectors. |
| CPT-E2L2DIN | Not listed in the bulletin table. |
Choose the right Andrew blade kit
- CPT-BKS1: CPT-L4ARC1, CPT-L45ARC, CPT-L1, CPT-L2, CPT-E2L2N, CPT-E2L2DIN (this kit).
- CPT-BKSF4: CPT-F4B and CPT-F4-D for FSJ4-50B cable.
- CPT-BK12U: CPT-L4-D for LDF4-50A cable.
- CPT-BK5, CPT-BK6, CPT-BK7: CPT-78U, CPT-114U and CPT-158U for AVA5, AVA6 and AVA7 cable.
Safety and use
- Eye protection is required when using the cable preparation tool. Beware of flying debris.
- Replace the blades with the socket wrench supplied with the tool.
- Inspect the blades after extended use, around 150 cable preparations, and replace them if needed.
- Andrew states that installation work requires qualified, experienced personnel.
Manufacturer documents
- CPT-BKS1 product specifications (PDF, revised June 23, 2025)
- EASIAX Plus cable prep tool installation instructions, bulletin 237562 (PDF)
- Andrew CPT-BKS1 product page
- RoHS and REACH statement of compliance
- ANDREW terms, conditions and warranty
About Andrew and the CommScope name
ANDREW was founded in 1937 and was acquired by CommScope in 2007. Amphenol completed its acquisition of CommScope's Outdoor Wireless Networks and Distributed Antenna Systems businesses in February 2025, and those businesses now operate as ANDREW, an Amphenol company.
Frequently asked questions
What is the Andrew CPT-BKS1?
It is a replacement blade kit for Andrew EASIAX Plus automated cable preparation tools. The kit includes four steel cutting blades. Andrew rates the cutting blade life at 150 cable preparations.
Which tools does the CPT-BKS1 fit?
Andrew lists the CPT-L4ARC1, CPT-L45ARC, CPT-L1, CPT-L2, CPT-E2L2N and CPT-E2L2DIN automated cable preparation tools.
Which cables do those tools prepare?
Andrew installation bulletin 237562 pairs the CPT-L4ARC1 with LDF4-50A cable, the CPT-L1 with LDF1-50, the CPT-L2 with LDF2-50, and the CPT-L45RC with LDF4.5-50A. The CPT-L45RC is the name used in the bulletin for what the datasheet calls CPT-L45ARC.
How many cable preparations do the blades give?
The datasheet rates cutting blade life at 150 cable preparations and the kit includes four blades. Andrew's bulletin says the four blades give about 150 cuts and can be moved between slots to get more cuts.
How do I replace the blades?
Andrew's bulletin says the blades are replaced with the socket wrench supplied with the tool. After extended use, around 150 cable preparations, inspect the blades and replace them if needed.
Does the CPT-BKS1 fit the CPT-78U, CPT-114U, CPT-158U or CPT-L4-D?
No. Andrew's bulletin 237562 pairs the CPT-78U with the CPT-BK5, the CPT-114U with the CPT-BK6, the CPT-158U with the CPT-BK7, and the CPT-L4-D with the CPT-BK12U. FSJ4 tools such as the CPT-F4B and CPT-F4-D use the CPT-BKSF4.
Does the kit include a cable preparation tool?
No. It contains replacement blades only. The tool is sold separately.
What safety precautions apply?
Andrew's bulletin says eye protection is required when using the cable preparation tool, and to beware of flying debris. It also says installation work requires qualified, experienced personnel.
Is the CPT-BKS1 RoHS compliant?
Yes. Andrew lists it as RoHS compliant and UK RoHS compliant, with China RoHS below the maximum concentration value and REACH-SVHC compliant.
Specifications on this page were checked against Andrew's current product page, its datasheet revised June 23, 2025, and installation bulletin 237562 revision H. Last reviewed October 2026.
