Best Hss Center Drill

3 Pcs Step Drill Bit Set, High-speed Steel Drill bit, Titanium Coated Unibit Step Drill Bit, Two Flute Design Step Drill With Tri-flatted Shank, 1/4\ to 1-3/8\

• HSS 4241: The step drill bit is made of strong HSS for outstanding durability and sharpness along with a titanium coating to ensure strong wear resistance, reduced friction. (For anti-rust, a small amount of rust Inhibitor will be coated with new items.).
• 32 in 3 Drill Bits: Multi-size in one drill bit, holes of different diameters can be processed at one time. Replacing drill bits and loading a Center Hole are not required, efficient and time-saver..
• 118°X Split Point： Unibit step drill bit with 118°X split point improves the cutting speed with self-centering and prevents walking to keep the step drill bit stable boosting the efficiency..
• Stability and Safety: The step drill with tri-flatted shank fits into power tools chuck securely and eliminates slip and is compatible with all kinds of drilling machines. Step visibility is increased with laser engraved numbers..
• Warm Tips: The step drill bit is a great helper to drill holes on Aluminum, Iron, Wood, Plastic material sheets. But Not the best choice for stainless steel, carbon steel, tile..

Utoolmart Center Drill Countersink Lathe Bit Mill Tool Combined Drills Plain Type Imperial 3/8-inch Combined Countersinks Drills Set Tool HSS-6542 Countersinks 5 Pcs

• 【Dimension】- The shank diameter of this center drill is 3/8-inch, the working edge length is 5mm / 0.20-inch, and the total length is 55mm / 2.17-inch..
• 【Material and Features】- High Speed Steel, high hardness, rustproof, solid, durable and excellent for use..
• 【Durable and Resistance】- Center drill bit is made of HSS high speed steel, with extremely sharp blade, low consumption and durable with impact resistance, wear resistance..
• 【Convenience】- Easy to use and install, change bits fast which one-handed load and release. Available for all Kinds of Materials: Metal, Alloy, Copper, Iron, Wood, Aluminum and so on..
• 【Precisely Processing】- Center and spotting drills are used to make a conical hole for a lathe center in order to make a starting point for a standard twist drill, designed to prevent the twist drill from walking..

Aexit 2mm x Drill Bits 8mm x 46mm HSS B Center Spotting Drill Bits Center Drill Inserts Countersinks Gray

Aexit 3mm x Drill Bits 10mm x 54mm HSS B Center Spotting Drill Bits Center Drill Inserts Countersinks Gray

Aexit 1.5mm x Drill Bits 6mm x 45mm HSS Electrical B Type Center Drill Center Drill Inserts Bits Gray

Aexit 1mm x Drill Bits 4mm x 32mm HSS A Type Center Spotting Drill Bits Center Drill Inserts Countersinks Gray

Aexit 4mm x Drill Bits 14mm x 61mm Double Ended HSS B Type Center Drill Center Drill Inserts Bits Gray

amoolo Hex Shank Drill Bit Set (16 Pcs), Premium 4341 HSS Titanium Impact Hex Drill Bits for Wood, Steel, Metal, Plastic, Quick Change Design (1/16”-3/8”)

• 【COMBO SET OF 16 PCS】12 most commonly-used sizes (1/16",5/64",3/32",7/64",1/8",9/64",5/32",3/16",7/32",1/4",5/16",3/8") to satisfy all needs, additional piece of 1/16", 5/64", 3/32" and 1/8"for easy replacement. Total 16 Pcs hex shank twist drill bit set come with a portable plastic case for easy select, storage and carry..
• 【ADVANCED HSS TITANIUM COATING】Industrial grade 4341 high speed steel drill bits set, harder than 4241 HSS and has stronger cutting capacity. Titanium coating increases wear-resistance and durability..
• 【FULLY GROUND PROCESS & 135° SPLIT POINT】Fully ground spiral flute discharge scraps quickly, reduce friction and heat, therefore provides a faster, cooler and more efficient drilling performance.
• 135° Split Point with straight shank prevents slippage and makes drilling stable and precise. No center punch is needed..
• 【QUICK CHANGE】1/4"(6.4mm) hex shank base well fits into majority pistol drill and drill press, more easily and securely installation without slippage and shedding..
• 【MULTIPLE APPLICATION】Small Drill bits for wood, plastic, steel plate ≤ 5mm, aluminum alloy and other soft metals..

Aexit 2.5mm x Drill Bits 10mm x 53mm Double Ended HSS B Type Center Drill Center Drill Inserts Bits Gray