Drill holes in concrete

Start with the task, confirmed material, required hole diameter, required hole depth, number of holes, and corded/cordless preference. For an anchor hole, obtain the dimensions and installation procedure from the selected anchor's current instructions. Do not calculate them from a screw's nominal size. Hilti SafeSet

If the material or drilling requirements are unknown, verify them first. A complete set of six inputs still cannot establish what is behind the surface or whether cutting reinforcement is permitted. Bosch material guidance, Hilti safety instructions, Hilti reinforcement guide

A bit must match more than the holder: check its material, operating mode, diameter and working length. Total length includes parts that do not provide usable hole depth. Do not subtract an invented standard shank length or add a universal depth allowance. Bosch CYL-3, Hilti TE-CX

Dust accessories can impose their own limits on bit length and hole depth. A longer bit does not automatically produce a deeper usable system. GDE instructions

A bit advertised for reinforced concrete is not permission to cut reinforcement, prestressing or an unidentified metal object. An attachment's metal-drilling prohibition also remains in force. Hilti reinforcement guide, GDE instructions

Match the collection attachment to the tool, drilling diameter, bit length, material and required depth. Then verify its filter, dust container, power or external extractor connection and installation instructions.

HEPA filter efficiency, an extractor's M-class designation, capture at the hole and legal exposure compliance are different claims. A filter label does not prove that the full job meets local exposure requirements. Bosch Dust Control brochure

The Hilti ROW product page uses both M-Class and HEPA wording. Its precise supplied filter configuration remains unresolved here. No compliance conclusion is drawn from either label. Hilti TE DRS-4/6

A drilling kit needs a verified tool, the correct bit, the prescribed dust components, suitable power, and the handles/depth-control equipment required by the instructions. Include eye, hearing and other protection required for the tool and site; respiratory protection must follow the actual exposure assessment and local requirements. For anchoring, add only the fastener, cleaning and installation components required by that specific system. DEWALT instructions, Hilti instructions, SafeSet

The following are research assemblies, not assumed customer jobs or claims about a single retail box.

Case A — Light Concrete Drilling

Bosch GBH 18V-22 → EXPERT SDS plus-7X 2608900072 → GDE 18V-12.

The official tool page links the dust unit and identifies another package containing GBA 18V 4.0Ah with GAL 18V-40. Separate package contents establish component compatibility, not an all-in-one bundle. Tool and packages, dust unit

The selected bit text lists 6 mm diameter, 100 mm working length and 165 mm total length. The page's image metadata differs, so these observations are retained but its effective automatic geometry is null pending confirmation. This is a documented tool–bit family–dust connection, not an unconditional SKU recommendation. Selected bit

The dust manual limits this attachment to 4–12 mm diameters, 165 mm maximum bit length and 100 mm maximum drilling depth, with a battery greater than 3.0 Ah. These are attachment-specific values. Use the prescribed intact filter and dust box; no external vacuum is part of this integrated assembly. GDE instructions

Case B — Medium Anchor Hole Drilling

Hilti TE 6-22 (05) → TE-CX 10/17 MP16 #2022035 → TE DRS-4/6 (01) ROW #2268002.

Tool-to-bit-family and tool-to-dust connections are documented. An official UK set also establishes B 22-85 battery and C 4-22 charger compatibility; the extractor's internal fan uses the tool battery. No external vacuum is required. Tool, bit, dust module, manual, power set

This third sample remains conditional. The retrieved UK bit page does not establish a reliable selected-SKU dimension tuple. The generic dust page lists 110 mm depth, while the manual gives 80 mm for TE 6-22 with TE-CX XX/17; they are not interchangeable fields. Exact geometry and ROW filter configuration need confirmation. No anchor diameter, embedment or cleaning approval is implied. Dust page, manual

Case C — Heavier Concrete Drilling

Bosch GBH 5-40 DCE → EXPERT SDS max-8X 2608900228 → GDE 68 → GAS 35 M AFC.

The selected bit is 20 mm diameter, with 200 mm working length and 320 mm total length. Its native interface and diameter match the published ordinary-bit range for this hammer; this is an intersection of specifications, not a manufacturer-issued certification of each SKU combination. Hammer, bit

GDE 68 supports drilling tools through its wall-mounted collection arrangement. Both it and GAS 35 M AFC identify Click & Clean compatibility. The UK 110V vacuum variant 06019C3170 includes hose/adapter 2608000566, PES filter 2607432034 and disposal bag 2607432043; it matches the chosen hammer's voltage designation. This does not approve a particular transformer, circuit or vacuum pass-through socket connection. GDE 68, vacuum and variants

The wall seal depends on suction. Verify positioning and the manufacturer's installation instructions on the actual surface. No attachment maximum depth was established, so the bit's 200 mm working length is not a 200 mm whole-system depth guarantee. The GDE 68 opening capacity does not enlarge the hammer's own drilling range. GDE 68, Dust Control brochure

This is an orientation checklist for an already verified ordinary-drilling setup, not a substitute for its manuals.

1. Verify the material, hole requirements and drilling location. Check hidden services and the back of through-holes. Resolve structural or reinforcement questions before drilling. Hilti instructions, reinforcement guide
2. Isolate power as the tool's instructions require before changing bits or assembling accessories. Fit and check the correct bit, auxiliary handle and dust components. DEWALT instructions
3. Set the depth control using the chosen system's procedure. On GDE 18V-12, align its guide as instructed and inspect the filter and container before operation. GDE instructions
4. Use the specified drilling mode and maintain control with the required grips. Do not force progress with excessive pressure. Stop at jamming or an unexpected obstruction; verify its cause before proceeding. DEWALT instructions, Hilti instructions
5. Complete hole cleaning and installation according to the chosen anchor's current instructions. Dust collection during drilling does not establish that an anchor hole is ready for installation. SafeSet

• Treating SDS-Plus or SDS-Max as a universal diameter band.
• Calling maximum capacity an optimum range.
• Applying a core-drilling number to an ordinary solid bit.
• Reading total bit length as usable hole depth.
• Ignoring the tighter limits imposed by a dust attachment.
• Inferring runtime or a corded/cordless cutoff from hole count.
• Treating a filter label as approval of the entire job.
• Treating reinforced-concrete capability as permission to cut steel.

The evidence for these distinctions is recorded above and in CDR-001 through CDR-020 of the JSON baseline.

A tool recommendation does not clear a drilling location, determine structural loads or identify concealed hazards. Stop when an unexpected obstruction, reinforcement or possible prestressing is encountered and obtain the appropriate verification. The historical Hilti guide is used only for this risk boundary, not as current structural design authority. Hilti instructions, reinforcement guide

Follow the actual tool and attachment manuals, including grip, power isolation and filter-maintenance instructions. Do not use drill-bit marketing to override an attachment's material restrictions. DEWALT instructions, GDE instructions

This content makes no OSHA or other jurisdiction-wide compliance claim. The original OSHA entry was only partially accessible and is retained as background, not executable evidence. OSHA entry