Quick Answer: Bosch Power Tools, Gerlingen Headquarters, Global Manufacturing Network
Bosch Power Tools sells the GDB corded diamond-drill range and matching Bosch-branded core bits. The verified cordless diamond drill is EXPERT EXDB18V2-180, a separate two-battery platform. Bosch is responsible for its product specifications and brand; a catalogue name alone does not identify the plant that made each core-bit SKU.
For a useful sourcing comparison, start with the machine, approved diameter and spindle. Then compare the bit's segment, bond, wet/dry application and origin marking by part number. We build Zhonghuan OEM alternatives around the same measurable fields and approve samples on the customer's machine.
Bosch Power Tools Structure
Robert Bosch GmbH's power-tools business operates an international development and production network. A company address or power-tool factory is not proof that a particular diamond core bit was manufactured there. For country-of-origin requirements, match the exact bit SKU to its packaging and supply documentation.
Bosch's current accessory classes are EXPERT, PRO and Bosch. Older names such as Best for Concrete may still identify individual diamond products; they are not a separate global level above EXPERT.
The GDB Rig Family
Bosch lists the corded GDB drills separately from the EXPERT EXDB18V2-180 cordless diamond drill:
- GDB 180 WE — corded wet coring rig, Ø180 mm capacity. Common for general structural coring work on mains power.
- GDB 350 WE — corded heavy-duty, Ø350 mm capacity. The Bosch flagship corded coring rig for industrial site work.
- EXPERT EXDB18V2-180 — Bosch cordless diamond drill powered by two 18V batteries. The official page lists wet and dry modes, drilling range up to Ø182 mm, and spindle threads G 1/2 plus 1¼ UNC; choose the bit by machine and application.
- Diamond drilling stands — Bosch S-300 series and similar — for stand-mounted operation alongside the GDB rigs.
The EXPERT EXDB18V2-180 extends Bosch cordless coring with a 2×18V machine. Distributors should identify the exact spindle, approved diameter and bit when serving this platform, separately from the corded GDB range.
For corded coring, the GDB 180 WE and GDB 350 WE compete directly with Hilti DD 150 / DD 200 and Husqvarna DM 340 in the same diameter and power class.
Current Bosch Accessory Classes and Diamond Core-Bit Names
Bosch's current performance-class guide lists three accessory classes: EXPERT, PRO and Bosch. EXPERT is its top-performance class for demanding applications; PRO covers a broad professional selection; Bosch denotes trusted standard products. The older “Best for Concrete” wording still appears as a name on particular diamond-accessory SKUs, but it is not an extra catalogue-wide class above EXPERT.
- EXPERT — Bosch's highest performance class. Check the particular diamond bit's material and machine application; the EXPERT label by itself does not define every segment bond or connection.
- PRO — professional accessories for standard and many special applications. Compare the actual wet or dry core-bit SKU and published dimensions.
- Bosch — standard accessory class. A legacy name such as “Best for Concrete” may still appear on a specific product and should be read with its SKU, not substituted for this three-class structure.
For core drilling, select by substrate, reinforcement, wet or dry mode, machine spindle, segment construction and diameter. A branded range name is a useful catalogue locator, not a substitute for those specifications.
Bosch Thread System: 1¼-7 UNC, 5/8-11 UNC, M16, M18
Core-bit compatibility is set by the spindle on the exact drill, the bit's thread and any approved adapter. Bosch lists G 1/2 and 1¼ UNC on the EXPERT EXDB18V2-180. Check the GDB 180 WE and GDB 350 WE separately in their machine documents; do not assume a 5/8-11 bit directly fits every GDB or EXDB model.
Small masonry or dust-extraction core cutters used with rotary hammers are a different accessory system. Their M16 or M18 connections must not be presented as native GDB diamond-drill spindles. On an OEM quote, state the machine model, holder, bit thread and adapter as four separate fields.
Brand Markup vs Engineering Spec
For distributors, Bosch brand recognition and technical specifications are separate buying factors. Choose one reference SKU and record its diameter, working length, segment dimensions, joint, bond designation, substrate and machine interface. A claimed “equivalent” needs a sample test on the named machine and material.
Our OEM quotation documents the proposed construction, inspection plan, packaging and order volume. Channel prices and gross margins depend on the actual contract, inventory and service obligations; we do not assign fixed discount percentages to every Bosch account.
The OEM Alternative
For distributors who want Bosch-grade engineering without the brand markup, the OEM private-label route works the same way as for Hilti, Milwaukee, or Husqvarna. The structure:
- Benchmark against Best for Concrete. Specify the Bosch reference SKU in the RFQ — segment height, segment count, bond designation, recommended substrate. The OEM factory matches the benchmark on engineering specs.
- Connection by machine. Bosch lists G 1/2 and 1¼ UNC on EXPERT EXDB18V2-180. Check each corded GDB spindle and any 5/8-11 adapter separately before claiming fit.
- Witness drilling test. Validate against a Bosch Best for Concrete reference bit on target substrate. Match hole count per bit and cut speed within agreed tolerance.
- Private-label packaging. Distributor brand on the bit body laser mark, blister or color box matching the channel positioning, with engineering specifications documented on the packaging or spec sheet.
Bit selection for EXPERT EXDB18V2-180 follows its actual gear, material, water supply and cutting regime. Do not assume every cordless drill has lower torque or higher RPM than a corded one; compare samples on the named machine before fixing the bond direction.
Zhonghuan View
At Zhonghuan we configure diamond core bits for the buyer's concrete, reinforcement, machine and wet/dry process. The approved specification records tube, segment matrix, joint, thread, diameter and working length. We then confirm drilling rate, wear and connection fit on samples.
Send the Bosch bit SKU used as a reference, the drill model and spindle, hole size and depth, substrate and reinforcement, expected order volume and packaging. We will return a documented OEM configuration and sample plan for your approval. Discuss the application with our engineering team.
