Milwaukee identifies 3601-20 as the M18 Compact Brushless 1/2-inch Drill/Driver. The US listing used here is 3601-20. Two speeds; variable trigger; torque-selector collar; no hammer mode.
Battery platform
M18
Controls and model distinctions
Two speeds; variable trigger; torque-selector collar; no hammer mode
Tool and package identity
The 3601-20 listing is tool-only, with battery and charger sold separately. The separately verified 3601-22CT package lists: 3601-20 drill; 2 × 48-11-1820 M18 2.0 compact batteries; 48-59-1812 M18/M12 charger; contractor bag.
Document applicability
Printed code 58149845d2 / 961014655-02(A), 02/23; English/French/Spanish; shared with hammer model 3602-20.
Check before you follow
Identity & documentation.
- Brand
- Milwaukee
- Model
- 3601-20
- Tool type
- Cordless drill/driver
- Market
- United States
- US product listing
- 3601-20
- Bulletin starting serial
- N66A (confirm applicability)
- Evidence level
- Manufacturer documentation; no physical testing
A source check date records this research pass. It does not confirm that a manual is the newest possible revision, a tool is still in production, or a particular unit matches these documents.
Manuals & service references
Identify the right document.
These are document reference records, not downloadable manuals. Original manufacturer files are not provided here. Match the exact model and revision before use. A parts reference does not authorize internal repair.
Operator manualPDF
3601-20/3602-20 operator manual 58-14-9845d2
Model identified in this document
Printed code 58149845d2 / 961014655-02(A), 02/23; English/French/Spanish; shared with hammer model 3602-20.
Document checked
Parts referencePDF
3601-20 service parts bulletin 54-06-2995, revised file
Model identified in this document
July 2025; starting serial N66A. The printed bulletin number omits the filename R suffix; confirm the bulletin and full tool identity before selecting parts.
Document checked
Keep the limits in view.
- Documentation-based guide; no hands-on testing, durability ranking, or independent performance claim.
- Manufacturer listing is live at check date; latest generation, stock, price and recall completeness not established.
- Parts diagram is an identification/reference link, not authorization or instructions for owner internal repair.
- Confirm full nameplate model, type or serial and region before selecting a document or service part.
Read the instructions for the tool and any applicable battery or charger together. Routine owner care stays outside the housing; internal service belongs with the manufacturer or an authorized service provider.
Keep reading
Milwaukee: explore this brand’s tool references
Guides for this model
Explore controls, comparisons and documentation for this exact model.
- Milwaukee: platform before mode
Existing M12 small-hole users can start with 3403; tight-access M18 users with 3601. Larger wood holes or suitable masonry can justify 2904 bulk.
- 3601 compact setup
Measure the actual accessory and battery envelope. Drive screws in low range; withdraw, stop and remove the battery before changing bits, rather than working on a powered drill in the gap.
- 3601 or 2904?
Consider 3601 for small holes, assembly and restricted access; choose 2904 when larger wood holes or suitable masonry justify its size and weight.
- Choose M12 or M18
Existing equipment can avoid duplicate purchases, not replace capability checks. The 48-59-1812 charges both families but does not make their packs interchangeable.
- Milwaukee service identity
Record full catalog and serial numbers, then compare the bulletin header and date; an R filename does not replace revision matching.
- Milwaukee kit contents
3403 pairs 4Ah with 2Ah, 3601 supplies two 2Ah packs, and 2904 two 5Ah packs. Deduct usable equipment already owned before comparing complete cost.
The reading behind this guide
Source records describe the evidence used for this guide. Original manufacturer files and external videos are not provided here.
Sources & references.
Manufacturer documents and public safety references are the starting point. Check each source’s scope and confirm the exact model, market, and revision for your tool.
- Milwaukee Tool: 3601-20 US product listing
Checked
Document checked
Listed at check time; not a stock check, discontinuation audit, or claim to be newest generation.
- Milwaukee Tool: 3601-20/3602-20 operator manual 58-14-9845d2
Checked · Pages Full16-page PDF downloaded; printed3 bit-specific capacities and3601/3602 mode separation.
Document checked
Printed code 58149845d2 / 961014655-02(A), 02/23; English/French/Spanish; shared with hammer model 3602-20.
- Milwaukee Tool: 3601-20 service parts bulletin 54-06-2995, revised file
Checked
Document checked
July 2025; starting serial N66A. The printed bulletin number omits the filename R suffix; confirm the bulletin and full tool identity before selecting parts.
- Milwaukee Tool: 3601-22CT US kit listing
Checked
Document checked
Pack contents are specific to this listing; do not decode all suffixes from these examples.