10-Piece HSS M35 Cobalt Drill Bit Set

Slice through your hardest, most stubborn workpieces without burning out or fracturing your tool edges. This premium HSS M35 cobalt drill bit set is an industrial-grade machining accessory engineered specifically to handle high-friction, heavy-duty metal drilling. Forged from high-speed steel infused with 5% cobalt, this ultra-dense alloy maintains its structural integrity and cutting sharpness at extreme temperatures where standard black oxide bits soften and fail. Outfitted with precision split points that eliminate drill walking completely, this versatile 10-piece metal drilling kit provides machinist hobbyists, auto mechanics, and fabricators with an elite drilling solution that easily punches through stainless steel, cast iron, and high-tensile alloys.

Key Features

• M35 Cobalt Thermal Armor: Infused with 5% cobalt to dramatically boost red-hardness, allowing the bits to cut continuously through heat-generating metals without losing their temper.

• 135° Self-Centering Split Points: Engineered with a specialized split-point geometry that bites into slick metals instantly on contact, eliminating the need for a center punch.

• Industrial High-Speed Steel Forging: Heavy-duty web construction provides maximum torsional strength, preventing bit twisting and shattering under heavy structural loads.

• Precision Spiral Chip Clearance: Designed with optimized deep-groove flutes that lift metal curls and shavings out of the deep pockets rapidly, minimizing heat buildup.

Why Choose Our HSS M35 Cobalt Drill Bit Set Standard drill bits dull instantly when exposed to tough work hardening metals like 304 stainless steel, leaving you with ruined workpieces, smoky workshops, and half-finished projects. This advanced cobalt-coated twist drill bit assortment delivers reliable cutting action through heavy gauge metals. Their short, rigid web design minimizes vibration and structural flexing under heavy vertical pressures, giving contractors, custom knife makers, and DIY fabricators an incredibly accurate, clean hole that speeds up assembly times while protecting expensive power tools from unnecessary strain.

Perfect For

• Boring clean fastener, bolt, and wire holes through heavy stainless steel sheets, marine hardware, and iron bars.

• Drilling out stubborn broken bolts, rivets, and hardened exhaust studs during automotive engine restoration.

• Cutting precise reference lines into tough structural aluminum plates, tool steel brackets, and dense alloy castings.

Product Specs

• Material Base: Premium M35 Grade High-Speed Steel (5% Cobalt Infused Alloy)

• Tip Geometry: 135-Degree Heavy-Duty Self-Centering Split Point Face

• Shank Structural Profile: Straight Round Shank for Standard 3-Jaw Drill Chucks

• Compatibility: Handheld Power Drills, Impact Drivers, and Industrial Drill Presses

Conquer Tough Stainless Steel Drilling Instantly Stop wasting time and money on cheap, melted drill bits that stall mid-cut and ruin your metalwork projects. Bring professional-grade cutting speed and heat resistance back to your workshop by ordering your 10-piece M35 cobalt drill bit set today.