Thanks for your question. We just measured all the bits. Length of Dia. 6.5mm drill bit: 100mm Length of Dia. 6mm drill bit: 92mm Length of Dia. 5.5mm drill bit: 93mm Length of Dia. 5mm drill bit: 86mm Length of Dia. 4.8mm drill bit: 86mm Length of Dia. 4.5mm drill bit: 79mm Length of Dia. 4mm drill bit: 74mm Length of Dia. 3.5mm drill bit: 69mm Length of Dia. 3.2mm drill bit: 65mm Length of Dia. 3mm drill bit: 62mm Length of Dia. 2.5mm drill bit: 55mm Length of Dia. 2mm drill bit: 48mm Length of Dia. 1.5mm drill bit: 39mm

Migiwata Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bits with Straight Shank Set of 13pcs to Cut Through Hard Metals Such as Stainless and Cast Iron

Migiwata Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bits with Straight Shank Set of 13pcs to Cut Through Hard Metals Such as Stainless and Cast Iron

Q: I need to cut through 3/16" heat treated high carbon steel. Think these can handle it?

Carbide bits are suitable for heat treated high carbon steel and hardened steel.

Q: Can these drill through cheddar or provolone without breaking?

Keep the speed very low or you risk burning the medium. You can go as low as 1RMM or even less. Or just chuck up a pit and poke at 0RPM. It works surprisingly well! If you wish to minimize the likelihood of burning, use a full-fat cheese for extra lubrication. Avoid drilling Swiss cheese if possible. The Swiss have used a clever proprietary blind hole drilling process during the manufacturing of their cheese and those pre-drilled holes definitely cause the bit to wander off course if the cheese is subsequently drilled outside of the factory setting. I learned that the hard way. Getting back to your original question, if you drill perpendicular to the face and slowly, you should be ok. I haven't tried it any other way tho, to be honest. By the nature of your question, I presume you are in Wisconsin. Go Packers!

Q: Why do drill bits sometimes break when drilling?

1. Poor quality of bit. 2. Too much pressure on the drill and it either heats up and snaps or the point grabs and the bit twists and breaks. 3. Not going straight through and pushing sidewise on the bit. If you believe that you operate properly but the the bits break, please contact us for a few replacement. You can always buy with confidence from Migiwata.

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Product ID: 452866193

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Details

Material
Cobalt Steel
Cutting Diameter
1.5 2 2.5 3 4
Finish Type
Bronze
Shank Type
Straight
Cutting Angle String
135 Degrees

Frequently Bought Together

Hymnorq 13-Piece Cobalt Drill Bit Set with Index Case – M35 Grade (5% Cobalt) Steel, 1.5mm to 6.5mm, Dual Twist Flute, 135° Split Point, Ideal for Hard Metals Like Stainless Steel and Cast Iron

Owl Tools 4.5mm Cobalt Drill Bits - 13 Pack M35 Cobalt Drill Bits with Storage Case - Perfect for Metal, Hardened & Stainless Steel, Cast Iron

M35 5% Cobalt Metric Drill Bits Set (1mm-10mm/19pcs), Straight Shank Jobber Drill Bits, Metal HSS Twist Drill Bits for Stainless Steel Hard Metal and Cast Iron

Description

Migiwata Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bits with Straight Shank Set of 13pcs to Cut Through Hard Metals Such as Stainless and Cast Iron

Specifications

Material	Cobalt Steel
Finish Type	Titanium
Shank Type	Straight
Cutting Angle String	135 Degrees
Item Dimensions LxWxH	13 x 1.5 x 7 Centimeters
Tool Flute Type	straight,twist
Surface Recommendation	Metal
Manufacturer	Migiwata
Model number	DC023
Item Weight	125 g
Product Dimensions	13 x 1.5 x 7.01 cm; 125 Grams
Item model number	DC023
Item Height	2.76 Inches
Item Width	0.59 Inches
Power Source	hand powered
Are batteries included?	No

Have a Question? See What Others Asked

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I need to cut through 3/16" heat treated high carbon steel. Think these can handle it?

Can these drill through cheddar or provolone without breaking?

Why do drill bits sometimes break when drilling?

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Migiwata Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bits with Straight Shank Set of 13pcs to Cut Through Hard Metals Such as Stainless and Cast Iron

Details

Description

Specifications

Have a Question? See What Others Asked

Common Questions