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The 3/16” x 6” in. Safe Bit features a special 4.8 mm Tungsten Carbide tip with a unique negative rake angle and a shortened chisel edge that increases it’s effectiveness and reduces tip failure. Each PRO-LOK® Butter Bit is diamond ground for razer sharpness to withstand the rigors and temperatures a locksmith may encounter when drilling hardplate for entry into a safe.
Manufacturer Resources
Product Specs
- Subcategory:
- Locksmith Tools
- Product Subgroup:
- Locksmith Tools
- Product Type:
- Safe Bits
- Product Category:
- Safe Bits
- Department:
- Door Hardware
Pro-Lok SB02 – Frequently Asked Questions
1) What is the Pro-Lok SB02 safe bit used for?
The SB02 is a locksmith's drill bit for cutting hardplate when drilling a safe for entry. It's a 3/16 inch diameter bit with a 6 inch length, tipped with 4.8 mm tungsten carbide, so it's meant for the abrasive, high-heat work of getting through a safe's drill-resistant plate rather than general metal drilling.
2) Why does the Pro-Lok safe bit have a negative rake angle instead of a standard drill point?
The negative rake angle plus a shortened chisel edge is what keeps the carbide tip from breaking up in hardplate. A conventional positive-rake point tends to bite and chip on hardened material; backing the rake off puts the cutting edge in compression, so the tip survives longer and cuts more effectively. The tip is also diamond ground for sharpness so it holds up to the heat that builds during a hardplate drill.
3) Which model number do I order for the Pro-Lok 3/16 inch by 6 inch safe bit?
Order it as Pro-Lok SB02. That is the single model for the 3/16 inch diameter, 6 inch length safe bit, so there are no finish or size options to specify on the order.
4) Is the 3/16 inch Pro-Lok safe bit solid carbide or a carbide-tipped bit?
It's carbide tipped. The body carries a 4.8 mm tungsten carbide tip that does the cutting; the carbide is the wear surface against hardplate, not the whole bit.
5) Can I use this Pro-Lok bit in a cordless drill or does it need a drill rig?
The SB02 is a 3/16 inch bit intended for hardplate drilling, which is slow, high-pressure work. Carbide tips chip when the bit wanders or flexes, and the shortened chisel edge on this bit is there specifically to cut tip failure, so it performs as intended under steady thrust and controlled speed, the kind a drill rig gives you. A hand-held drill will not hold the bit square through hardplate.
How fast can I get the Pro-Lok SB02 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Pro-Lok SB02 come with a warranty?
Absolutely. The Pro-Lok SB02 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Pro-Lok SB02?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the Pro-Lok SB02 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.