Marfione Select is a premium tier designation within Microtech's product lineup, associated with knives designed by or in collaboration with Tony Marfione and featuring elevated materials, finish quality, and hardware specifications above standard Microtech production. The 169MRL-10MS1 is a Sebastijan Berenji and Tony Marfione collaboration — the slab side titanium construction, double vapor blasted 17-4 stainless Torx hardware, matte bronze anodized titanium accents, and Bohler M390MK blade steel reflect the Marfione Select standard throughout the build.

Bohler M390MK is M390 alloy processed to Microtech's proprietary heat treatment specification, heat-treated to 60-62 HRC. M390 is Bohler's high-vanadium, high-chromium powder-metallurgy stainless — the benchmark production steel for edge retention, wear resistance, and corrosion resistance. The MK designation indicates Microtech controls the hardening and tempering cycle to their own standard. At 0.127 inches thick in a flat ground spear point with stonewash finish, the Mini Stitch blade is a precise, slicing-optimized geometry that delivers M390MK's full performance in a compact 3.05-inch format.

The RAM-LOK is Microtech's crossbar locking mechanism, also designated the X-Button lock. A spring-loaded crossbar engages the blade tang when the blade is fully open, locking it in place with positive engagement. To close, press the X-Button — the crossbar retracts and the blade can be folded manually. The crossbar is accessible from either side of the handle, making the lock fully ambidextrous. RAM-LOK provides a rock-solid lockup with no blade play in any direction when engaged.

Vapor blasting (also called wet blasting or aqua blasting) is a surface finishing process that uses a slurry of water and abrasive media propelled by compressed air to produce a fine, uniform matte surface. Double vapor blasting applies the process twice, producing an exceptionally smooth, consistent matte finish with a slightly burnished appearance that is more refined than standard bead blasting or sandblasting. On the 17-4 stainless steel Torx hardware of the Mini Stitch, double vapor blasting creates a consistent surface texture that complements the stonewash titanium slabs without visual disruption.

No. The Mini Stitch RAM-LOK 169MRL-10MS1 is a manual folding knife — it deploys via thumb hole with no spring or automatic mechanism. It is legal in all US jurisdictions where folding knives are permitted and in most international destinations where automatic knives would be prohibited. No compliance form is required at checkout. The RAM-LOK crossbar lock provides positive, secure lockup when the blade is open.

The Mini Stitch RAM-LOK measures 7.14 inches overall when open with a 3.05-inch blade at 0.127 inches thick. Closed length is 4.09 inches and handle thickness is 0.490 inches. It weighs 4.09 oz — the titanium slab construction contributes meaningful weight in a compact package. The milled deep carry stainless steel clip is configured for tip-up ambidextrous carry, reversible for right or left-hand use.