Drill Guide Bushing
Hardened guide bushing that precisely directs the drill bit.
This is a dimension schematic, not a manufacturing drawing. Dimensions match the catalog data; request a quote with the part code to confirm before production.
Code & Size Table
Code, dimensions and tolerance for all 10 variants.
| Code | Diameter (mm) | Length (mm) | Feature | Tolerance | Std |
|---|---|---|---|---|---|
| BURB-GDE-03 | 6 | 8 | ⌀3 | g6 · ⌀6: −0.004/−0.012 | drill bush, H7 bore 3 mm |
| BURB-GDE-04 | 8 | 10 | ⌀4 | g6 · ⌀8: −0.005/−0.014 | drill bush, H7 bore 4 mm |
| BURB-GDE-05 | 9 | 12 | ⌀5 | g6 · ⌀9: −0.005/−0.014 | drill bush, H7 bore 5 mm |
| BURB-GDE-06 | 10 | 14 | ⌀6 | g6 · ⌀10: −0.005/−0.014 | drill bush, H7 bore 6 mm |
| BURB-GDE-05F | 12 | 15 | ⌀5 · 2 steps | g6 | flanged drill bush 5 mm |
| BURB-GDE-08 | 12 | 16 | ⌀8 | g6 · ⌀12: −0.006/−0.017 | drill bush, H7 bore 8 mm |
| BURB-GDE-08F | 15 | 20 | ⌀8 · 2 steps | g6 · ⌀15: −0.006/−0.017 | flanged drill bush 8 mm |
| BURB-GDE-10 | 15 | 18 | ⌀10 | g6 · ⌀15: −0.006/−0.017 | drill bush, H7 bore 10 mm |
| BURB-GDE-12 | 18 | 20 | ⌀12 | g6 · ⌀18: −0.006/−0.017 | drill bush, H7 bore 12 mm |
| BURB-GDE-12F | 20 | 25 | ⌀12 · 2 steps | g6 | flanged drill bush 12 mm |
Prices are for approved members.
Material & Tolerance
The standard material is listed below; also available in steel, stainless, brass and aluminium. Dimensions in mm; tolerances machined to ISO. Deviations (mm) are given for the nominal diameter according to the ISO 286-2 tables; thread tolerances (6g/6H) are to ISO 965. For custom sizes/tolerances, contact us with the part code.
Manufacturing Scope
Drill Guide Bushing is a Bushings family precision-turned on a Goodway SW-20, covering 10 variants — diameters ⌀6–20 mm, lengths 8–25 mm, standard material Steel (also stainless steel, brass or aluminium). Every variant's part code, dimension and tolerance is listed below; request a quote with the code you need.
The family is machined from ⌀20 mm bar stock; its longest variant is BURB-GDE-12F at 25 mm. The family is produced by turning alone. Bores in this family run ⌀3–12 mm. All of it is completed in a single setup, without the part leaving the machine.
The variant with the highest length-to-diameter ratio is BURB-GDE-06: 14 mm long at ⌀10 mm, L/D 1.4. A short, rigid body: what governs the result here is not deflection but diameter tolerance and surface finish.
Variants are machined to g6 tolerance; the smallest is BURB-GDE-03 (⌀6 mm) and the largest BURB-GDE-12F (⌀20 mm). The family includes bored, multi-step variants. Custom sizes, tolerances or materials are produced to the part code on request.
Need a size that isn't listed? We machine to your drawing — CNC contract machining. How these parts are made: What is a Swiss-type lathe?
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