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Powermatic premium mortise chisel and bit 3/8 is a hollow chisel and bit set machined from solid bars of carbon steel, so it delivers a rigid cutting tool that holds geometry under load when you are mortising hardwood or softwood. The set has one cutting edge, one spur, and a brad point, so the bit and chisel work together to score the perimeter, remove waste, and guide the cut for accurate mortise location. This combination is designed to make consistently clean and truly square cuts, which keeps tenons fitting tightly and reduces hand pairing after machine work. The extra long bit is built for compatibility with different mortisers, giving you the reach needed on machines that position the head or table higher. Ground and hardened carbon steel construction supports efficient performance and long life, so the edge resists wear during repeated runs and helps maintain consistent results over time.
This 3/8 inch Powermatic hollow chisel and bit set is categorized under mortisers and mortising machines, so it is built specifically for use in dedicated mortising equipment rather than general drilling operations. The extra long bit supports compatibility with different mortisers, so it reaches properly into work when machines have varying head travel or table positions. Having one cutting edge, one spur, and a brad point means the set is engineered for the way mortisers feed vertically, with the brad point guiding into the mortise layout line while the spur and edge square the walls. Ground and hardened carbon steel construction helps the tool hold up to the vertical load and repeated plunges typical of mortising machines, supporting consistent wall quality across the full depth of the cut.
This Powermatic premium hollow chisel and bit set is identified as a 3/8 inch size, so it is suited to mortises laid out for 3/8 inch tenons or hardware that expects that width. Being part of the mortisers and mortising machines class means it is intended for use in shop mortisers where the workpiece is clamped and the head plunges, so the geometry supports that controlled, vertical cutting action. The extra long bit is designed for compatibility with different mortisers, which helps when switching between machines with different throat depths or column heights while still maintaining proper bit extension inside the chisel body. Because the set is machined from solid bars of carbon steel, it offers a robust structure that supports mortising in both furniture-scale parts and thicker components where deeper mortises are needed. The design goal of consistently clean and truly square cuts supports joinery where shoulders must close tightly and the mortise must stay straight through the stock thickness.
The combination of one cutting edge, one spur, and a brad point is engineered so the brad point locates the mortise, the spur scores the outline, and the edge shears the waste, which results in mortises with smooth side walls that fit mating tenons more predictably. Having a ground and hardened carbon steel construction supports efficient performance because sharp, hard edges require less force to cut, which can help mortisers run smoother and reduce strain on the machine during repeated plunges. The long life described for this hardened carbon steel means the tool is built to retain its profile over many cycles, supporting consistent mortise dimensions from the first part to later batches. The focus on making consistently clean cuts with smooth side walls matters when glue adhesion and seating depth are important, because scoured, straight walls help glue spread evenly and tenons shoulder out without rocking. Being a Powermatic Tools product with manufacturer part number PM9-1791093 provides a specific identification for matching this 3/8 inch chisel and bit set to existing Powermatic mortising setups, which supports repeatability when replacing or duplicating tooling for the same joinery patterns.
The Powermatic premium mortise chisel and bit 3/8 is designed around a 3/8 inch hollow chisel and bit, supporting mortises sized for 3/8 inch wide joinery in typical mortising machine setups.
The extra long bit provides additional reach inside the hollow chisel, so it can align correctly with various mortiser head heights and table positions while maintaining proper chip removal and cutting engagement.
The Powermatic hollow chisel and bit set uses one cutting edge, one spur, and a brad point, coordinating perimeter scoring and waste removal for clean, square mortises with smooth side walls.
Ground and hardened carbon steel gives the chisel and bit a refined, hard cutting surface that supports efficient cutting performance and long life under repeated mortising machine use.
This Powermatic premium hollow chisel and bit set is associated with mortisers and mortising machines, so it is intended for dedicated mortising equipment used in woodworking shops.
The PM9-1791093 designation is the manufacturer part number for this Powermatic premium mortise chisel and bit 3/8 set, providing a precise identifier when sourcing or matching tooling.
The Powermatic premium mortise chisel and bit 3/8 combines a hollow chisel and extra long bit in ground and hardened carbon steel, giving mortising machines a dedicated tool set aimed at clean, square 3/8 inch joinery. At Wurth Baer Supply, this PM9-1791093 set aligns with mortisers and mortising machines, so it supports shop workflows that depend on accurate, repeatable mortises with smooth side walls. Selecting this identified Powermatic Tools chisel and bit set allows mortise work to follow the engineered combination of cutting edge, spur, and brad point for consistent square cuts in woodworking projects.
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