Drill bushings DIN 179 (headless press-fit): bore range, OD n6, lengths, 0.4 to 63 mm + STEP/STL sleeves

sizes

21 in table

Notes

• DIN 179 is the plain press-fit drill bushing without a collar (headless): a hardened, ground steel sleeve that is pressed into a jig plate to guide a drill or reamer. The bore d1 is ground to F7, the outside d2 to n6, and the receiving hole in the plate is H7 (JW Winco: 'holes with tolerance H7 are recommended', the pair being a transition fit). Bores come in steps inside each range (OPAC's gradation column): 0.1 mm up to 1.8 mm, 0.1 or 0.25 mm up to 15 mm, 0.25 mm up to 35 mm, 0.5 mm from 35.5 to 55 mm and 1 mm from 56 mm; KIPP says only 'above 15 mm, size increases are 0.5 mm', which disagrees.
• DIN 172 and DIN 179 are easy to swap: DIN 172 is the one with the collar (DIN Media: 'Press fit jig bushes, headed'), DIN 179 has none. The bodies (d1, d2, lengths) of the two are identical row for row; see the DIN 172 page for the collar. The wording 'DIN 179 headed / DIN 172 headless' sometimes seen in listings is wrong.
• Where the sources agree: d2 and the short and long lengths for every row from 0.9 mm up (KIPP K1021 and OPAC 481). They differ in three ways: KIPP lists three lengths from the 2.7 to 3.3 range up (short / medium / long) and OPAC two, with OPAC's long equal to KIPP's medium; KIPP's third length equals the next row's long. KIPP starts the bore ranges above 15 mm at x.5 and OPAC at x.25. KIPP has a first row (0.4 to 0.8 mm, d2 3, l1 6) that OPAC does not; OPAC has two rows above 48 mm (d2 70 and 78) that KIPP does not. The one-source rows are marked. KIPP also prints R (1 to 3.5) and a T tolerance column without defining them; R is shown as printed and T is left out.
• Files: the 18 rows read in both sources get a sleeve at the short length (bore example in the table), and five of them (bores 3, 6, 10, 12, 22) also at the long length. The bore in each file is an example inside the published range, not a standard value. Bore chamfer, edge radius (Form A has one end of the bore rounded) and the lead-in are not drawn: the sheets give R without saying where it applies. Add your process allowance to the plate hole (H7) and leave the sleeve at nominal.
• Not covered: DIN 179 B (rounded at both ends), the XL lengths, the 'mould' bushes (ISO 8018 is a different part), slip and renewable bushings, and bores above 63 mm.

Drill bushings DIN 179 (headless press-fit): bore range, OD n6… size chart

Mating features

Drawn at the exact size. Open press, slide, run and socket features by your process's clearance (tolerances by process); leave designed gaps and clamp fits as drawn.

Where the files are

Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.

Free files

★ Free files 23 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json

Plain text: sheet.txt · JSON: /api/geometry?object=drill-bushings-din-179-headless

Fits with

Free

Drill bushings DIN 172 (headed, with collar): bore range, OD n6, collar diameter and height, lengths, 0.4 to 63 mm21 sizes★ sheetFree

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Plain / sintered bushings ISO 2795: bore, outside diameter, thin series and length options (1 to 60 mm) + STEP/STL sleeves32 sizes★ 10 filesFree

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Drill size chart: number #1–#80, letter A–Z, fractional 1/64–1 in and metric drills in decimal inches and mm (ASME B94.11M)205 sizes★ sheet