Cylindrical drill bush DIN 179 form A, bore 28.5 mm, length 25 mm, outside dia 42 mm, ground

During drilling in the jig this bush takes over the guidance of the 28.5 mm tool. The overall length of 25 mm sets the bearing surface of the drill in the short version, and the bore matches form A of DIN 179.

Benefits

• Outside diameter of 42 mm as a ground seat in the drill plate
• Guide bore of 28.5 mm to DIN 179 for the matching tool
• Bore rounded on one side to form A, with a fixed fitting direction in the jig
• Overall length of 25 mm in the short version of the range short, medium and long
• Guide length of about 0.9 drill diameters at 25 mm of length

Applications

• Drilling jigs and drill templates in series production
• Jig and tool making
• Repeatable hole patterns in sheet metal, profiles and housings
• Maintenance work where hole patterns are reworked

Standard and material

Dimensions and design follow DIN 179. The material is special case-hardening steel, the hardness is 740 ± 80 HV 10, and the functional surfaces are ground.