The Spline Screw Socket for Stihl MM56 Multi-System (OEM No. 0812 540 1112) is a genuine Stihl service tool designed for accurate, reliable fastener work on the MM 56 range. Built with a durable metal construction and a precise T27 profile, it provides a positive grip on compatible screws to reduce cam-out and wear. The 1/4 inch (6.35 mm) hedrive fits standard bit holders, screwdrivers, and small ratchets, making it easy to use with everyday tools. A long-reach T27 140 mm driver bit helps access recessed fasteners commonly found on shrouds and attachments. As a Genuine Stihl Part, it offers an exact fit for factory hardware on the MM 56 and MM 56 Multi-System, supporting routine maintenance, repairs, and setup with consistent results.

Key Features:
– Genuine Stihl Part for accurate fit and reliable engagement on MM 56 hardware
– 1/4 inch (6.35 mm) hedrive for compatibility with common bit holders and ratchets
– T27 140 mm long-reach driver bit for accessing recessed screws
– Robust metal construction suitable for regular workshop and site use
– Precision-cut spline/Torprofile to minimise cam-out and fastener damage
– Steady torque transfer for controlled tightening and loosening
– Straightforward to use; no special adaptors required
– Designed for maintenance, servicing, and repairs on the MM 56 Multi-System
– OEM reference: 0812 540 1112 for easy identification

Typical Applications:
Tightening and loosening T27 screws during servicing of the Stihl MM 56 Multi-System, including attachment changes, casing removal, periodic checks, and general repairs. Suitable for bench work, mobile toolkits, and on-site maintenance where a long-reach driver is needed to access recessed or shrouded fixings. Works with 1/4 inch (6.35 mm) bit holders, screwdrivers, and small ratchets.

Also known as:
Star drive bit, TorT27 screwdriver bit, long-reach Torbit, 1/4 inch (6.35 mm) heshank driver, spline driver, star fastener bit, service driver for MM 56, maintenance bit for Stihl Multi-System.

Fits Models:
MM 56
MM 56 Multi-System
MM56

Alternate Part Numbers:
0812-540-1112, 08125401112

Product Specifications