Under these tests, plugs within cylinders are evaluated for their resistance to pulling, impact, torque, and drill resistance. Locks must not yield to these forms of force for a minimum of five minutes. The relevant issue is that some high security locks will not meet these requirements and ...
This mill can be easily make-up and break-out with standard bit breakers.String Junk MillThe String Mill is designed to clean casing and whipstock windows. Its short leading and trailing angles, allow the mill to clean "bird nest" and other obstructions in the ...
Designed to saw into corners and cut angles with precision the wood blade can be utilized for even the toughest tasks. The curved design allows the blade to be used in flush cut projects, trimming base boards and door jambs when installing new flooring is easy with the Versa-Tool u...
US$21.50-28.50 / Set Wood Flat Drill Bit with Quick Change Hex Shank US$0.50-2.50 / Piece for Angle Grinder Grinding Wheel Carbide Wood Sanding Disc US$1.50-3.50 / Piece High Performance Flat Abrasive Wheel to Cut Metal and Masonry US$0.45-1.50 / Pie...
Roof drill bit with radial domed PCD inserts A rotary drill bit having a head portion with at least two hard surfaced inserts having domed working surfaces and being oppositely oriented to face in the direction of rotation at positive rake angles, and a mounting adapter for removab... WJ Bra...
5. Verticals and horizontals can be combined at many angles in horizontal level so that cuplock is perfect for arc shape building construction. 6. This cuplock scaffolding are interlocked by cups and ledgers which is very safe and stable steel scaffold...
(1)螺旋角β 螺旋角是钻头螺旋槽上最外圆的螺旋线展开成直线后与钻头轴线的夹角。由于螺旋槽上各点的导程相同,因而钻头不同直径处的螺旋角是不同的,外径处螺旋角最大,越接近中心螺旋角越小。增大螺旋角则前角增大,有利于排屑,但钻头刚度下降。标准麻花钻的螺旋角为18°～38°。对于直径较小的钻头,螺旋角应...
TIANHE Flex non-Mag Drill Collar is thinner and more flexible than standard drill collar. Their ability to make short radius turns, bend for high build angles, and pass through severe doglegs makes them ideal for use in directional and horizontal applications. Manufactu...
Designed to saw into corners and cut angles with precision the wood blade can be utilized for even the toughest tasks. The curved design allows the blade to be used in flush cut projects, trimming base boards and door jambs when installing new flooring is easy with the Versa-T...
Ideal for flush cuts and cut-outs in hard, non metallic materials such as hardwoods, plywood and particle board this wood blade can also tackle materials such as plastics, fiberglass and Plexiglas. Designed to saw into corners and cut angles with precision the wood blade ...