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The WIHA 28895 is a 24-piece micro screwdriver insert bit set designed for precision fastening work across a broad range of tip types. The set covers Hex, Phillips, Slotted, and Torx drive formats in the micro size range, making it a compact, all-in-one solution for fine mechanical assembly and adjustment tasks. Chrome-plated construction provides corrosion resistance and consistent contact with fastener heads. Electricians, HVAC technicians, and electronics-capable service pros working on control boards, terminal blocks, and small-format equipment will find this set suited to tight-access fastener work where standard bit sets fall short.
This bit set is suited for residential and light commercial service work involving micro-scale fasteners found on control boards, panel equipment, small motors, instrumentation enclosures, and precision mechanical assemblies. The wide tip-type coverage across Torx T-1 through T-6, Phillips 000 through 0, Hex 0.70 through 1.30 mm, and slotted 0.8 through 2 mm slot sizes means technicians can address virtually all micro fastener formats encountered in the field without carrying multiple individual bit assortments.
Designed as an OEM-style insert bit set for use with compatible micro bit handles and precision screwdriver systems accepting standard insert bit formats in the micro size range.
Insert bits should be seated fully and securely in the drive handle before applying torque to avoid cam-out or fastener head damage. Power down any electrical equipment and discharge capacitors before servicing control boards or panel components with this set. Verify bit tip size against the fastener head before applying force, particularly at the smallest sizes where mismatches cause rapid tip wear. This type of tooling is typically used by licensed electricians, HVAC technicians, and instrumentation technicians following applicable NEC or equipment-specific service guidelines.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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