![]() We also stock two sets, both boxed in nice fitted wooden cases: 35mm is a few thousands larger than an imperial 1 3/8" bit and can be used almost interchangeably but the true 35mm bit we stock will fit hinges a touch better. In addition to a comprehensive set of drill sizes in imperial measurements from 1/4" to 2 1/2" by 1/16" increments to 1" and then in 1/8" increments, we also stock in this listing a non-wave cutter 3/4" (4 3/4" overall) extra long bit for drilling workbenches, and a 35mm wave bit for European style hinges. This also means that drilling over an edge is easy and reliable as is drilling at an angle. One huge advantage of the Forstner design is that the bits are edge bearing so that you can easily cut overlapping holes without having the bit wander into a previous hole. The scored wood is easily lifted out by the drill and you get clean, fast holes. This means that instead of riding on a level cutting edge, as you are drilling your are scoring the wood thousands of times at the cutting diameter. The "Wave" innovation is the wavy cut on edge of all bits greater than 1/2". These bits get the clearances right! You can drill quickly, cleanly and without burning in hard or soft wood. ![]() Each bit is forged out of a blank of a propriety steel alloy and machined to exacting tolerances. These "Wave Cutter" Forstner bits from Fisch are the newest and best drilling technology for this class of bits. Practical advice and specialty of the tool: Top for freehand drilling and stationary use.Forstner bits were invented in 1874 and are the simplest, best way of drilling a hole with a flat bottom, a hole at an angle, or overlapping holes. Clearly less effort is needed and boring is more rapid than with the usual forstner bit Rapid material removal of solid wood and chipping boards. Ø 1 inch 2200 min-1 in construction wood.ĭescription of application: Rapid drilling in softwood, European hardwood, chipboard, MDF etc. and specific example for the most common diameters in the according field of application: 900 - 3200 min-1. The description of the tool design: Forstner Bit with wave-form cutting teeth, two main cutting edges and brad point In combination with extension shanks of product line 1639 perfectly suitable for drilling deep holes The low heat development offers an incredibly long service life with highest drilling quality. Usage: Top for freehand drilling and stationary use. Clearly less effort is needed and boring is more rapid than with the usual Forstner bit Rapid chipping of solid wood and chipboards. Further details in the speed diagramĪpplication: Rapid drilling in soft wood, European hard wood, chipboard, MDF etc. Ø 35 mm 1500 rpm in glue lam (glue laminated timber). Hexagonal shank for a better power transfer Also they minimize the friction and the growth of heat. Two in reverse order staggered, grooved main cutting edges (from Ø 11 mm), a circumferential cutting edge with longitudinal grooves - both effecting that a clear less feed force is necessary. Tool: Bormax 2.0! Centre point with cutting character.
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