BEST 1CDP Series Premium Drill...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$105.00
$95.94
BEST BEST 1CDP Series Premium Drill Resistant Cylinder Core BES-1CDP

BEST 1CDP Series Premium Drill Resistant Cylinder Core with Paracentric Keyway

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Model: BES-1CDP5WA1605
From the Premium Cores Collection
$105.00
$95.94
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$105.00
$95.94
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BEST 1CDP Series Premium Drill Resistant Cylinder Core with Paracentric Keyway

Premium Security Cylinder Core with Enhanced Drill Resistance

The BEST 1CDP Series Premium Drill Resistant Cylinder Core combines advanced drill resistance with premium paracentric keyway design for superior commercial security applications. This premium core features enhanced security through its paracentric keyway configuration where the keyline crosses the center of the core, providing increased protection against unauthorized access. Engineered for strenuous daily use with larger, heavier premium keys that deliver exceptional durability in demanding commercial environments.

Professional Features & Benefits

  • Premium Drill Resistance: Advanced 1CDP design provides superior protection against drilling attacks for high-security applications.
  • Paracentric Keyway Security: Enhanced security design with keyline crossing center of core prevents unauthorized key duplication and picking attempts.
  • Heavy-Duty Key Construction: Premium keys are larger and heavier than standard keys, engineered to withstand strenuous daily use in commercial environments.
  • Master Key System Support: Fully compatible with BEST’s comprehensive master key systems backed by exceptional depth of masterkey expertise.
  • Commercial-Grade Durability: Designed for demanding commercial applications with proven performance across a wide range of security installations.
  • Professional Installation Support: Backed by BEST and their network of distributors for complete system management and technical support.

Technical Specifications

  • Collection: Premium Cores
  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Parts and Accessories Type: Replacement Parts
  • Product Attribute: Parts and Accessories
  • Product Category: Mechanical Locks
  • Product Group: Parts and Accessories
  • Product Subgroup: Cylinders
  • Product Type: Cylinders
  • Series: Standard & Premium Cores
  • Subcategory: Parts and Accessories

Installation & Operation

This premium cylinder core is designed for use with compatible BEST cylinder assemblies. Refer to the parent cylinder installation instructions and manufacturer documentation for proper integration. Ensure compatibility with existing hardware and master key system requirements before installation.

Professional Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Government and Municipal Buildings
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • High-Security Commercial Installations

Why Choose BEST Quality?

BEST cylinder cores deliver professional-grade security with nearly 100 years of proven performance in commercial applications. The 1CDP Series combines advanced drill resistance with premium paracentric keyway design, backed by BEST’s exceptional master key system expertise. Engineered for demanding commercial environments where reliable security and key control are essential.

Manufacturer Resources

Premium Cores and Keys

Product Specs

Product Group:
Parts and Accessories
Series:
Standard & Premium Cores
Product Subgroup:
Cylinders
Product Type:
Cylinders
Subcategory:
Parts and Accessories
Commercial/Residential:
Commercial
Collection:
Premium Cores
Parts and Accessories Type:
Replacement Parts
Product Attribute:
Parts and Accessories
Product Category:
Mechanical Locks
Department:
Door Hardware

BEST BES-1CDP5WA1605 – Frequently Asked Questions

1) What is a BEST 1CDP core and can I swap it into my existing BEST housings myself?
The 1CDP is a premium drill resistant interchangeable core for BEST cylinder assemblies, with a paracentric keyway where the keyline crosses the center of the core. It is a replacement part, not a complete cylinder: you pull the old core with a control key and drop this one in, so the housing, the lock and the door prep all stay put. Order it against a housing you already have, since the core does not include one.
2) Do I order the BEST 1CDP core 5-pin, 6-pin or 7-pin?
Core size runs 5-pin, 6-pin and 7-pin on the 1CDP, and it has to match the system you are keying into, not the door. A 7-pin core gives the most levels of masterkeying for a large facility; a 5-pin is the shallower system most small sites run. Mixing sizes inside one master key system breaks the keying, so pull the pin count from your existing cores or your keying schedule before ordering.
3) What is the difference between combinated and uncombinated BEST 1CDP cores?
Combinated means the core arrives pinned to a keying assignment and cut keys go with it. Uncombinated arrives unpinned, for a locksmith or an in-house shop that pins to its own system. If you order combinated, supply the keymark and marking number from your keying records so the core is cut into your existing system; without those, the factory has nothing to key it to. Facilities without a keying department almost always want combinated.
4) Will a BEST 1CDP core fit a Schlage or Corbin Russwin lock?
No. The 1CDP is a BEST small format interchangeable core and it seats only in housings built for that figure-eight core, so it will not go into a Schlage or Corbin Russwin cylinder. For a Schlage full size interchangeable core opening, the Schlage 20-057 FSIC rim cylinder or the 20-057-C in C keyway is the part that fits. For a Corbin Russwin mortise lock, the 1000 Series 1-1/2 inch mortise cylinder with an A02 straight cam or the 1070 1-1/4 inch housing with an A01 cam is the equivalent.
5) I need to rekey one deadbolt, not a whole system. Is a BEST 1CDP core the right buy?
Not if the lock is not already a BEST interchangeable core housing. A single non-IC deadbolt or knob takes a conventional replacement cylinder instead, such as a Kaba Ilco 1549 key-in-deadbolt cylinder or the 1539 key-in-knob and lever universal cylinder. The 1CDP only makes sense where a BEST IC housing is in the door, or where you are converting a site to interchangeable cores on purpose.
6) What is the difference between a BEST 1CDP core and a Schlage 20-057 full size interchangeable core cylinder?
Both are full size interchangeable core products, but they belong to different key systems. The BEST 1CDP is a premium drill resistant core with a paracentric keyway, offered in WA, WB, WC, WD, WE, WG, WH, WK and WY keyways and in 5-pin, 6-pin and 7-pin core sizes, so it drops into a BEST-prepped housing and runs on a BEST master key system. The Schlage 20-057 is an FSIC rim cylinder with a convertible tailpiece cam, and the 20-057-C is an FSIC core in the C keyway with a 643E Aged Bronze finish. If the building is already keyed BEST, the 1CDP is the core that matches; if the building is keyed Schlage C, the 20-057-C is the one that matches.
7) Can a BEST 1CDP core be used in place of a Corbin Russwin 1080 LFIC mortise cylinder?
No, those solve the problem at different levels. The Corbin Russwin 1080 is a complete 1-1/2 inch LFIC mortise cylinder, 6-pin, with an A01 Schlage L cam, built for Schlage L9000 mortise locks - it is the housing plus the core. The BEST 1CDP is the core alone, a premium drill resistant core with a paracentric keyway that installs into an existing compatible BEST cylinder housing. On a mortise lock that needs the whole cylinder body supplied, the CR1080-112-A01 is the part; on a door where the housing is already in place and only the core is being rekeyed or upgraded, the 1CDP is the part.
8) If a door needs a complete mortise cylinder rather than a replacement core, what should be ordered instead of the BEST 1CDP?
The 1CDP is a cylinder core that installs into a compatible BEST cylinder assembly, so a door with no existing housing needs a full cylinder. The Corbin Russwin 1000 Grade 1 mortise cylinder in 1-1/2 inch length with an A02 straight cam covers a standard mortise prep, and the Corbin Russwin 1070 Grade 1 6-pin mortise housing in 1-1/4 inch length with an A01 cloverleaf cam covers the shorter length with a cloverleaf cam. The Adams Rite 4036 mortise cylinder is a Grade 1 five-pin unit with a 1/2 inch minimum door thickness. Match the cam style to what the lock case takes before ordering.
9) What is the equivalent to a BEST 1CDP core for a rim device that takes a rim cylinder housing?
The 1CDP is a core, not a rim cylinder housing, so a rim exit device needs a rim unit. The Corbin Russwin 3070 is a 6-pin rim cylinder housing with a 1-7/8 inch tailpiece. On the Schlage side, the 20-021 is a 6-pin rim cylinder with a vertical tailpiece cam and the 20-022 is the same 6-pin rim cylinder with a horizontal tailpiece cam, both supplied with 2 keys. The tailpiece orientation and length are what the device dictates, so confirm those against the exit device before choosing.
10) For a narrow stile aluminum storefront door, what cylinder is used instead of a BEST 1CDP core?
A narrow stile aluminum door on an Adams Rite deadlock takes a cylinder pull or mortise cylinder sized for that lock, not an interchangeable core on its own. The Adams Rite 4024 cylinder pull mounts with a trim plate and the 4025 is a five pin tumbler cylinder pull with through-screws, both for the Adams Rite MS1847 deadlock and deadlatch; the 4026 is the five pin tumbler cylinder pull for the 5017 wood door deadlock and deadlatch. The Adams Rite 4036 is a Grade 1 five-pin mortise cylinder with a 1/2 inch minimum door thickness. The 1CDP is a premium drill resistant core for a BEST core-prepped cylinder assembly, which is a different opening.
11) Which cylinder matches a building already keyed to Schlage C rather than a BEST 1CDP core?
The 1CDP uses BEST paracentric keyways - WA, WB, WC, WD, WE, WG, WH, WK and WY - so it will not key to a Schlage C system. The Detex MC65 is a mortise cylinder with a Schlage C keyway, 1-1/8 inch, 6-pin, commercial grade, and the Schlage 20-057-C is a full size interchangeable core in the C keyway with a 643E Aged Bronze finish. Choose by whether the opening needs a fixed mortise cylinder or a core that pulls with a control key.
12) Is the drill resistant 1CDP worth it over a standard BEST core?
The 1CDP adds drill resistance and a premium paracentric keyway aimed at attack and at casual key duplication, and its keys are physically larger and heavier than standard keys so they hold up to constant daily use. On a back door, a stairwell, a cash room, a pharmacy or an IT closet that is worth the step up. On interior offices in the same building, the value is mostly that everything stays on one master key system, which the 1CDP supports either way.
13) Can I standardize a whole building on BEST 1CDP cores across different lock types?
That is the point of an interchangeable core program. The same 1CDP core moves between any BEST housings you have on knobs, levers, mortise locks, padlocks and exit device cylinders, so one key system covers mixed hardware and rekeying a door means swapping a core instead of pulling the lock apart. Keep the keyway and pin count consistent across the site, pick one of the nine keyways and one core size, and turnover on a tenant or a lost key is a two minute job per door.
14) What information do I have to give when ordering a keyed BEST 1CDP core?
Four choices plus your keying data: core size (5, 6 or 7 pin), keyway, finish, and combinated or uncombinated. Combinated cores also need the keymark and the marking number off your keying records so the cut matches the system already in the building. Get the keymark wrong and the core arrives on a different system than every other door.
15) Is a Kaba Ilco 1539 universal cylinder a substitute for a BEST 1CDP core in a key-in-lever lock?
They are not the same part. The Kaba Ilco 1539 is a key-in-knob and key-in-lever universal replacement cylinder, and the 1599 is a key-in-knob replacement cylinder - both replace the cylinder in a conventional knob or lever lockset. The BEST 1CDP is an interchangeable core that seats in a BEST core-prepped housing and carries a paracentric keyway in WA through WY keyways across 5-pin, 6-pin and 7-pin sizes. A lockset prepped for a small format interchangeable core takes the 1CDP; a conventional non-core lockset takes a cylinder like the 1539 or 1599.
16) What replaces a BEST 1CDP core on a Sargent-prepped lever lock?
The 1CDP runs a paracentric keyway on the BEST system and seats in a compatible BEST cylinder assembly, so it will not serve a Sargent-keyed opening. The Kaba Ilco 1579 is a knob and lever cylinder made for Sargent. For a Falcon opening, the Falcon A23161-05 G is a key-in-lever cylinder for the RU/T series with a 6-pin G keyway, keyed different and supplied with 2 cut keys. Both keep the door on its existing key system rather than converting it.
17) What cylinder goes with a residential style handleset or deadbolt when a BEST 1CDP core will not fit?
Handlesets and residential deadbolts generally are not core-prepped, so the 1CDP, which seats in a compatible BEST cylinder assembly, is not the part. The Medeco 1075127 is a 5-pin rim type lazy motion single cylinder for handlesets and deadbolts, the 1012040 is a 6-pin lazy motion rim cylinder for Kwikset single cylinder deadbolts, and the 1065244 is a 5-pin rim lazy motion cylinder with an Emtek tailpiece. The Medeco 1065140 is a 5-pin retrofit cylinder for the Arrow JL interconnected lock and for the Emtek handleset and deadbolt outside cylinder, and Emtek also supplies the CY4 cylinder as a single part.
18) Which cylinder option covers a deadbolt when standardizing a facility on interchangeable cores?
The BEST 1CDP core comes uncombinated or combinated and in 5-pin, 6-pin and 7-pin sizes, which lets a facility carry one core type across core-prepped openings and pin them to a single master key system. Where a deadbolt is not core-prepped, the Kaba Ilco 1549 is a key-in-deadbolt cylinder with a deadbolt function, and the 1599 is a key-in-knob replacement cylinder. Those cover the conventional openings that sit alongside the core-prepped ones in the same building.
How fast can I get the BEST BES-1CDP5WA1605 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the BEST BES-1CDP5WA1605 come with a warranty?
Absolutely. The BEST BES-1CDP5WA1605 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the BEST BES-1CDP5WA1605?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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