| 3-ply cutters reduce tip crack even with hard use, and the edge of knife adopts super quality alloy materials, which is applied to drilling in cold / hard metal stainless steel plates.   The 25mm effective length enables this hole saw to drill thick steel plates as as curved face materials like thick-wall metal pipes ,etc.   The abrasion reducing design heightens durability of hole saw to great degree, besides, with lighter and fasters drilling compared with previous TCT-edge products.   Applications: Intended for cutting Stainless steel plate, Copper plate, Iron plate, Brass plate, Aluminum plate, Alloy steel plate, Electrical controller box, Channel iron.   Features: 1.     Can cut materials up to 5mm thickness; 2.     Tungsten Carbide Tipped cutting edge; 3.     The slug is spring ejected when cutting is finished; 4.     Cutting depth limitation; 5.     Can be used on the portable and pillar drilling machines.   
| Item No. | Diameter |                                       | Item No. | Diameter |  
| MTTCTH15 | 15mm | MTTCTH45 | 45mm |  
| MTTCTH16 | 16mm | MTTCTH48 | 48mm |  
| MTTCTH17 | 17mm | MTTCTH50 | 50mm |  
| MTTCTH18 | 18mm | MTTCTH53 | 53mm |  
| MTTCTH19 | 19mm | MTTCTH55 | 55mm |  
| MTTCTH20 | 20mm | MTTCTH60 | 60mm |  
| MTTCTH21 | 21mm | MTTCTH65 | 65mm |  
| MTTCTH22 | 22mm | MTTCTH70 | 70mm |  
| MTTCTH23 | 23mm | MTTCTH75 | 75mm |  
| MTTCTH24 | 24mm | MTTCTH80 | 80mm |  
| MTTCTH25 | 25mm | MTTCTH85 | 85mm |  
| MTTCTH25 | 26mm | MTTCTH90 | 90mm |  
| MTTCTH28 | 28mm | MTTCTH95 | 95mm |  
| MTTCTH30 | 30mm | MTTCTH100 | 100mm |  
| MTTCTH32 | 32mm | MTTCTH105 | 105mm |  
| MTTCTH35 | 35mm | MTTCTH110 | 110mm |  
| MTTCTH38 | 38mm | MTTCTH115 | 115mm |  
| MTTCTH40 | 40mm | MTTCTH120 | 120mm |  
| MTTCTH42 | 42mm | MTTCTH125 | 125mm |  |