Taper Ground Blade Blades are made from SK-4 high carbon steel and taper ground, thus they are thicker at the tooth edge and thinner at the back of the blade. This taper reduces resistance giving smoother, easier, faster cutting performance. Sharpenable Because impulse-hardening is not treated, the blade marked with this symbol can be sharpened with a file. Hard Chrome Plating Hard chrome plating produces an exceedingly hard and durable surface. The blades are resistant to rust and the effects of tree resin plus they can be easily wiped clean thanks to mirror polishing. Impulse-hardening Using a special high frequency heating technique- teeth are heated instantly and hardened. Because of this localized heating process only the teeth of the blade are heated and hardened; the remainder of the blade is unchanged and still retains its normal flexibility. The hardened teeth are harder than an ordinary file and stay sharp about three times longer than non-hardened teeth Rubber Handles Almost all SILKY saws have rubber compound elastomer handles. The rubber is either inserted or vulcanized to ABS plastic or steel. Rubber handles are comfortable to hold, reduce vibration and offer superior grip when hands are wet or cold or when wearing gloves. 4-Retsume literally means four rows of teeth. SILKY 4 RETSUME saws have teeth set in such a way that there appears to be 4 rows of teeth. Saws marked with the 4-RETSUME symbol are rough cutting hand saws for heavier jobs. They cut on the PULL STROKE for faster, more efficient cutting and they have excellent, free flowing discharge of wood chips. SILKY 4-RETSUME saws can rip-cut, cross-cut and slant-cut. MIRAI-ME means teeth of the future. SILKY taper saw marked with the MIRAI-ME symbol have precision ground, razor sharp teeth with 4 cutting angles along the length of the blade. This gives faster, more efficient cutting and excellent free flowing discharge of chips. They leave an especially smooth surface after cutting and are ideal for pruning, they greatly reduce the risk of infection. SILKY MIRAI-ME saws can rip-cut, cross-cut and slant-cut. They cut on the PULL STROKE for faster, more efficient cutting. G MARK Design mark award for product selected by Ministry of International Trade and Industry in Japan. Arborist Forestry Pruning Farmwork Fruit Tree Pruning Outdoor Gardening Enjoy Secure Shopping with Need help? Just ask! Dust Bee GoneTM Nuisance Dust Mask and Safety Gear Phone: 386-454-9833 Fax: 386-454-7447 1999-2020 Dust Bee GoneTM. All Rights Reserved.